Properties of the Number 71952

Seventy-One Thousand Nine Hundred Fifty-Two

Basics

Value: 71951 → 71952 → 71953

Parity: even

Prime: No

Previous Prime: 71947

Next Prime: 71963

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 1499

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100100010000

Octal: 214420

Duodecimal: 35780

Hexadecimal: 11910

Square: 5177090304

Square Root: 268.2386996687838

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

a(n) = 2*(n-1)*( a(n-1)+a(n-2) ) starting a(1)=a(2)=1. A142703

a(n) = 2·binomial(n+4, 4) + n + 4. A177206

Expansion of e.g.f. (1 + x)/(1 - log(1 + x)). A306038

The five digits of a(n) and their four successive absolute first differences are all distinct. A365257

a(0) = 1; for n>0, a(n) = (n+3)*2^n-2-n·binomial(n-1, floor( (n-1)/2 ))-(n-1)*binomial(n-2,floor((n-2)/2)). A121285

Diagonal T(n, 4) of triangle in A071951. A71952