Properties of the Number 31996

Thirty-One Thousand Nine Hundred Ninety-Six

Basics

Value: 31995 → 31996 → 31997

Parity: even

Prime: No

Previous Prime: 31991

Next Prime: 32003

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 19 × 421

Divisors: 1, 2, 4, 19, 38, 76, 421, 842, 1684, 7999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111110011111100

Octal: 76374

Duodecimal: 16624

Hexadecimal: 7cfc

Square: 1023744016

Square Root: 178.8742575106882

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

Numbers k such that k | 12^k + 12. A15904

Positive numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers and y>x). A135792

Numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers). A135793

Define b by b(1) = 1 and for n>1, b(n) = b(n-1)+1/(3+1/b(n-1)); sequence gives denominator of b(n). A80989

Real part of (1 + n·i)⁵. A121671

Expansion of ( 1+x² ) / ( 1-4·x+5·x²-4·x³ ). A271898

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ρ = ρ (Na,Cs)12[ Al12Si36O96 ] . 44 H2O. A19059

Even composite integers m such that A004254(m)² == 1 (mod m). A338314

Define b by b(1) = 1 and for n>1, b(n) = b(n-1)+1/(3+1/b(n-1)); sequence gives numerator of b(n). A80988

Duplicate of A023753. A31996