#include using namespace std; #define int long long #define ii pair #define app push_back #define all(a) a.begin(), a.end() #define bp __builtin_popcountll #define ll long long #define mp make_pair #define f first #define s second #define Time (double)clock()/CLOCKS_PER_SEC #define debug(x) std::cout << #x << ": " << x << '\n'; const int MOD = 1e9+7, N = 1e6+7; //need define int long long int mod(int n) { n %= MOD; if (n < 0) return n + MOD; else return n; } int fp(int a, int p) { int ans = 1, c = a; for (int i = 0; (1ll << i) <= p; ++i) { if ((p >> i) & 1) ans = mod(ans * c); c = mod(c * c); } return ans; } int dv(int a, int b) { return mod(a * fp(b, MOD - 2)); } struct M { ll x; M (int x_) { x = mod(x_); } M () { x = 0; } M operator + (M y) { int ans = x + y.x; if (ans >= MOD) ans -= MOD; return M(ans); } M operator - (M y) { int ans = x - y.x; if (ans < 0) ans += MOD; return M(ans); } M operator * (M y) { return M(x * y.x % MOD); } M operator / (M y) { return M(x * fp(y.x, MOD - 2) % MOD); } M operator + (int y) { return (*this) + M(y); } M operator - (int y) { return (*this) - M(y); } M operator * (int y) { return (*this) * M(y); } M operator / (int y) { return (*this) / M(y); } M operator ^ (int p) { return M(fp(x, p)); } void operator += (M y) { *this = *this + y; } void operator -= (M y) { *this = *this - y; } void operator *= (M y) { *this = *this * y; } void operator /= (M y) { *this = *this / y; } void operator += (int y) { *this = *this + y; } void operator -= (int y) { *this = *this - y; } void operator *= (int y) { *this = *this * y; } void operator /= (int y) { *this = *this / y; } void operator ^= (int p) { *this = *this ^ p; } }; M f[N], inv[N]; void prec() { f[0] = M(1); for (int i = 1; i < N; ++i) f[i] = f[i - 1] * M(i); inv[N - 1] = f[N - 1] ^ (MOD - 2); for (int i = N - 2; i >= 0; --i) inv[i] = inv[i + 1] * M(i + 1); } M C(int n, int k) { if (n < k) return M(0); else return f[n] * inv[k] * inv[n - k]; } signed main() { #ifdef HOME freopen("input.txt", "r", stdin); #else #define endl '\n' ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cout.setf(ios::fixed); cout.precision(20); #endif int n, k, m; cin >> n >> k >> m; prec(); M ans(0); for (int len = 1; len <= n; ++len) { if (k % len == 0) { ans += C(n - 1, len - 1) * f[len - 1] * (M(n) ^ (n - len)); } } if (m == 1) { cout << ans.x << endl; } else { M al = M(n) ^ n; cout << ((al - ans) / (n - 1)).x << endl; } }