Properties of the Number -22878

Twenty-Two Thousand Eight Hundred Seventy-Eight

Basics

Value: -22879 → -22878 → -22877

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 31 × 41

Divisors: 1, 2, 3, 6, 9, 18, 31, 41, 62, 82

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100101011110

Octal: -54536

Duodecimal: -112A6

Hexadecimal: -595e

Square: 523402884

Square Root: 151.25475199146638

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 partitions of n whose negated run-lengths are not unimodal. A332639

Expansion of series_reversion( x/(1 + sum(k>=1, x^A032766(k)) ) ) / x. A215340

Number of involutions avoiding 3421. A230555

Triples of practical numbers: numbers n such that n-2, n, n+2 are all practical numbers. A287682

Number of permutations of [n] having a shortest ascending run of length 7. A228674

Numbers k such that 7·2^k + 3 is prime. A58592

Number of binary strings of length n with no substrings equal to 0101, 0110, or 1001. A164508

Number of -n..n arrays x(0..3) of 4 elements with zero sum, adjacent elements differing by more than one, and elements alternately increasing and decreasing. A200193

Numbers k such that λ(k) = λ(k+2), where λ is the Carmichael λ function (A002322). A333742

Smallest positive number divisible by n that has n letters in US English, or 0 if none exists. A384131