Properties of the Number 89947

Eighty-Nine Thousand Nine Hundred Forty-Seven

Basics

Value: 89946 → 89947 → 89948

Parity: odd

Prime: No

Previous Prime: 89939

Next Prime: 89959

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 11 × 13 × 17 × 37

Divisors: 1, 11, 13, 17, 37, 143, 187, 221, 407, 481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10101111101011011

Octal: 257533

Duodecimal: 44077

Hexadecimal: 15f5b

Square: 8090462809

Square Root: 299.9116536582065

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Composite squarefree numbers n such that p(i)-5 divides n+5, where p(i) are the prime factors of n. A225705

Quasi-Carmichael numbers to base 7: squarefree composites n such that (n,2·3*5) = 1 and prime p∣n ==> p-7∣n-7. A29556

Expansion of 1/(1-x-x³-x⁶). A120415

4-brilliant numbers with distinct prime factors. A376864

Multiples of 5291. A178027

Consider the 2^n-1 monic polynomials f(x) with coefficients 0 or 1, degree n and f(0)=1. Sequence gives triangle read by rows, in which T(n,k) (n>=1) is the number of such polynomials of thickness k (2 <= k <= n+1). A169940

G.f.: A(x) satisfies: [xⁿ] A(x)^n²-2·n+2 = 0 for n>=2. A185072

Crystal ball sequence for A₁₀ lattice. A8396

G.f.: (1-x)⁹/((1-5·x+6·x²-4·x³+x⁴)*(-1+4·x-3·x²+x³)*(1-3·x+x²)*(-1+2·x)). A89947