Properties of the Number 31375

Thirty-One Thousand Three Hundred Seventy-Five

Basics

Value: 31374 → 31375 → 31376

Parity: odd

Prime: No

Previous Prime: 31357

Next Prime: 31379

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 ³ × 251

Divisors: 1, 5, 25, 125, 251, 1255, 6275, 31375

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101010001111

Octal: 75217

Duodecimal: 161A7

Hexadecimal: 7a8f

Square: 984390625

Square Root: 177.12989583918352

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

Primitive numbers in A229307. A229311

Number of partitions of 2n into distinct parts < n. A231429

Numbers k that divide 3^k + 2^k. A45576

Triangular numbers with only odd digits. A117960

Cubeful numbers whose neighbors are also cubeful. A122692

Third row of Pascal-(1,6,1) array A081581. A81591

Triangular numbers with at most two distinct prime factors. A119663

Square array T(n, k) = v(k, n)((1)), where v(n, q) = M·v(n-1, q), M = {{0, 1, 0}, {0, 0, 1}, {q³, q³, 0}}, with v(0, q) = {1, 1, 1}, read by antidiagonals. A173749

a(n) = ∑_d∣n max(d, n/d)³. A297842

Numbers k such that 6!*(2·k-7)!/(k!*(k-1)!) is an integer. A4786