Properties of the Number 31195

Thirty-One Thousand One Hundred Ninety-Five

Basics

Value: 31194 → 31195 → 31196

Parity: odd

Prime: No

Previous Prime: 31193

Next Prime: 31219

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 17 × 367

Divisors: 1, 5, 17, 85, 367, 1835, 6239, 31195

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100111011011

Octal: 74733

Duodecimal: 16077

Hexadecimal: 79db

Square: 973128025

Square Root: 176.6210632965389

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 integer partitions of n with no adjacent parts having quotient > 2. A342094

Strong pseudoprimes to base 84. A20310

Numbers k such that φ(k) = φ'(k'), where φ(k) is the Euler totient function of k and k' is the arithmetic derivative of k. A260962

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A299453

Triangle, read by rows, given by [0,1,1,1,1,1,1,1,...] δ [1,0,1,0,2,0,3,0,4,0,5,0,6,0,...] where δ is the operator defined in A084938. A173050

Array read by antidiagonals: T(n,k) is the number of rooted unlabeled k-gonal cacti having n polygons. A332648

Periods of sum of 6th powers of digits iterated until the sequence becomes periodic. A31195