Properties of the Number -54626

Fifty-Four Thousand Six Hundred Twenty-Six

Basics

Value: -54627 → -54626 → -54625

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 13 × 191

Divisors: 1, 2, 11, 13, 22, 26, 143, 191, 286, 382

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1101010101100010

Octal: -152542

Duodecimal: -27742

Hexadecimal: -d562

Square: 2983999876

Square Root: 233.72205715336327

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

Irregular table read by rows: n-th row lists the 9 n-gonal numbers of a 3 X 3 semimagic square with the smallest magic sum. The terms of each row are arranged in the manner shown in A261816. A265141

Pierce expansion of 2/π. A154956

Consider a room of size r X s where rs = 2n and 1 <= r, 1 <= s; count ways to arrange n Tatami mats in room; a(n) = total number of ways for all choices of r and s. Two arrangements are distinguished if one is a rotation or reflection of the other. A67925

Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 9. A244538

a(n) = n⁴/6 - 2·n³/3 - n²/6 + 5·n/3 + 1. A299198

Pentagonal numbers which are the arithmetic mean of two consecutive primes. A234531

Numbers n such that n | 11ⁿ + 9ⁿ + 7ⁿ + 5ⁿ + 3ⁿ + 1. A57832

Pentagonal numbers which are products of four distinct primes. A381919