Properties of the Number 31245

Thirty-One Thousand Two Hundred Forty-Five

Basics

Value: 31244 → 31245 → 31246

Parity: odd

Prime: No

Previous Prime: 31237

Next Prime: 31247

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 2083

Divisors: 1, 3, 5, 15, 2083, 6249, 10415, 31245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 111101000001101

Octal: 75015

Duodecimal: 160B9

Hexadecimal: 7a0d

Square: 976250025

Square Root: 176.76255259528247

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 permutations in S_n that avoid the pattern 12453 (or equivalently, 31245). A116485

Number of (12345, 13245, 21345, 23145, 31245, 32145)-avoiding permutations. A54872

Numbers k such that k¹⁰ == 1 (mod 11⁴). A56094

List of André permutations of the first kind. A278982

List of André permutations of the second kind. A278983

Array read by rows in which the n-th row contains the multiples of n in increasing order using all the digits of first n numbers. A78189

Numerators of sequence of fractions with e.g.f. sqrt(1+x)/(1-x)². A126121

Numbers k such that k![10]-2 is prime, where k![10] is the ten-fold multifactorial. A283559

Number of permutations of length n which avoid the patterns 321, 31245. A116851

Number of permutations of 1..n containing the relative rank sequence { 23145 } at any spacing. A158423