Properties of the Number 40158

Forty Thousand One Hundred Fifty-Eight

Basics

Value: 40157 → 40158 → 40159

Parity: even

Prime: No

Previous Prime: 40153

Next Prime: 40163

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 23 × 97

Divisors: 1, 2, 3, 6, 9, 18, 23, 46, 69, 97

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110011011110

Octal: 116336

Duodecimal: 1B2A6

Hexadecimal: 9cde

Square: 1612664964

Square Root: 200.39461070597682

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 subsets of {1, 2, ..., n} containing n and having <=6 pairwise coprime elements. A186990

a(n) = 5·a(n-1) - 3·a(n-2), a(0)=1, a(1)=6. A109114

Number of partitions in parts not of the form 23k, 23k+3 or 23k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 10 are greater than 1. A35991

Numbers·such that the sum of all their cyclic permutations is equal to that of all cyclic permutations of σ(x) and all cyclic permutations of Euler totient function φ(x). A247317

Primes p such that x⁴ = 23 has no solution mod p. A40158