Properties of the Number -54615

Fifty-Four Thousand Six Hundred Fifteen

Basics

Value: -54616 → -54615 → -54614

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 11 × 331

Divisors: 1, 3, 5, 11, 15, 33, 55, 165, 331, 993

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101010101010111

Octal: -152527

Duodecimal: -27733

Hexadecimal: -d557

Square: 2982798225

Square Root: 233.69852374373272

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

Numbers k such that A003313(k) = A003313(6·k). A116461

Numbers n such that φ(n) = φ(n+7), with Euler's totient function φ = A000010. A179189

Inverse binomial transform of A140359. A140360

Triangular numbers with sum of digits = 21. A68131

Number of ways to choose two points on a centered hexagonal grid of size n. A241219

Consider the group freely generated by an element U of order 3 and an element S of order 2. a(n) gives the number of words in the alphabet {U,S} of length n that are equal to unity. A265434

Number of (2,n)-partitions of a chain of length n³. A55659

Triangular numbers in which the k-th significant digit either divides k or is a multiple of k. A69559

Numbers n such that A003313(3n) < A003313(n). A104699

Integers n such that n+2!, n+2!+3!, n+2!+3!+4!, n+2!+3!+4!+5!, n+2!+3!+4!+5!+6!, and n+2!+3!+4!+5!+6!+7! are all prime. A267123