Properties of the Number 31285

Thirty-One Thousand Two Hundred Eighty-Five

Basics

Value: 31284 → 31285 → 31286

Parity: odd

Prime: No

Previous Prime: 31277

Next Prime: 31307

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 6257

Divisors: 1, 5, 6257, 31285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101000110101

Octal: 75065

Duodecimal: 16131

Hexadecimal: 7a35

Square: 978751225

Square Root: 176.87566254292872

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 compositions of n where adjacent parts are indivisible (either way) and the last and first part are also indivisible (either way). A318727

Nearest integer to γ(n + 10/11)/γ(10/11). A20005

a(n) = floor(γ(n+10/11)/γ(10/11)). A20050

Triangle read by rows: Pascal's triangle (A007318) times the Fibonacci triangle (A139375). A201165

Number of distinct values obtained when each of the operators # in the expression 1#2#3#...#n is replaced by + (add) or x (multiply) in all possible ways, for n=1,2,3,... A138651

The odd-greedy Egyptian-fraction algorithm for 5/1444613 has 37 terms, the last of which has 384122451172 digits; sequence gives remainder-numerators. A31285