Properties of the Number 31146

Thirty-One Thousand One Hundred Forty-Six

Basics

Value: 31145 → 31146 → 31147

Parity: even

Prime: No

Previous Prime: 31139

Next Prime: 31147

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 29 × 179

Divisors: 1, 2, 3, 6, 29, 58, 87, 174, 179, 358

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110101010

Octal: 74652

Duodecimal: 16036

Hexadecimal: 79aa

Square: 970073316

Square Root: 176.4822937294277

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

Number of trees of diameter 4. A94

G.f. satisfies A(x) = 1 + x·cycle_index(Sym(5), A(x)). A36721

Fibonacci(p-J(p,5)) mod p², where p is the n-th prime and J is the Jacobi symbol. A113650

Sum of the largest parts in the partitions of n into 6 parts. A308873

Consider primitive pairs of integers (b, c) with b > 0 such that x⁵ + b·x + c = 0 is irreducible and solvable by radicals: sequence gives values of b. A371553

Composite squarefree numbers n such that p(i)-4 divides n+4, where p(i) are the prime factors of n. A225704

(n-1)-st elementary symmetric function of first n Lucas numbers, starting with L(1)=1. A203010

a(n) = 3*(9·n - 1)*(3·n - 2). A277985

Expansion of (1 + 80·x + 2592·x² + 29360·x³ + 138124·x⁴ + 295552·x⁵ + 299984·x⁶ + 144016·x⁷ + 31146·x⁸ + 2688·x⁹ + 72·x¹⁰)/(1-x)¹⁶. A272765

a(n) = (prime(n)+1) * prime(n+1). A345727