Properties of the Number 31346

Thirty-One Thousand Three Hundred Forty-Six

Basics

Value: 31345 → 31346 → 31347

Parity: even

Prime: No

Previous Prime: 31337

Next Prime: 31357

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 × 2239

Divisors: 1, 2, 7, 14, 2239, 4478, 15673, 31346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111101001110010

Octal: 75162

Duodecimal: 16182

Hexadecimal: 7a72

Square: 982571716

Square Root: 177.04801608603245

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

Triangle giving T(n,k) = number of (n,k) labeled rooted Greg trees (n >= 1, 0<=k<=n-1). A48160

Number of set partitions of [2n] with symmetric block size list of length n. A275283

Number of set partitions of [n] with symmetric block size list of length A004525(n). A305197

Number of set partitions of [2n] with symmetric block size list of length six. A275294

Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259002

Base-6 analog of A208059. A212995

Multiplicative persistence: number of iterations of "multiply digits" needed to reach a number < 10. A31346

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259006