Properties of the Number -231231

Two Hundred Thirty-One Thousand Two Hundred Thirty-One

Basics

Value: -231232 → -231231 → -231230

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 11 ² × 13

Divisors: 1, 3, 7, 11, 13, 21, 33, 39, 49, 77

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -111000011100111111

Octal: -703477

Duodecimal: -B1993

Hexadecimal: -3873f

Square: 53467775361

Square Root: 480.86484587667667

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 of Stirling numbers of order 4. A59023

Triangle read by rows, the coefficients of J. L. Fields generalized Bernoulli polynomials. A220412

Non-primitive words on {1,2,3}. A239018

Odd pentagonal pyramidal numbers. A15223

a(n) is the smallest number not already in the sequence, such that the concatenation of all a(n) displays the periodic digit string 1, 2, 3 (and repeat). A165301

Denominators of rationals related to John Wallis' product formula for π/2 (from his 'Arithmetica infinitorum' from 1659). A120995

Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,3,1. A37645

Integers are written in the form abcd...n where "a" means "At position a in this integer there is a digit b"; "b" means: "at position b there is a digit c"; "c" means: "at position c there is a digit d"; ... and "n" means: "at position n there is a digit a". A105956