Properties of the Number 31192

Thirty-One Thousand One Hundred Ninety-Two

Basics

Value: 31191 → 31192 → 31193

Parity: even

Prime: No

Previous Prime: 31189

Next Prime: 31193

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 7 × 557

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 557, 1114

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100111011000

Octal: 74730

Duodecimal: 16074

Hexadecimal: 79d8

Square: 972940864

Square Root: 176.61257033405067

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 partitions of 4n into 4 parts. A238340

Regular triangle where T(n,k) is the number of pairs of set partitions of {1,...,n} with meet {{1},...,{n}} and join of length k. A318389

Iterated heptagonal numbers (A000566), starting at 7. A99153

Number of permutations in S_n avoiding the patterns 1342 and 2143. A109033

The number of idempotents in the Jones (or Temperley-Lieb) monoid on the set [1..n]. A225798

a(n) = n*(5·n - 3)*(25·n² - 15·n - 6)/8. A264891

Heptagonal numbers divisible by 7. A117795

Number of non-monotonic functions from [k] to [n-k]. A189711

Number of n X 6 0..1 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope. A223590

Number of nX7 0..1 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope. A223591