Properties of the Number -52155

Fifty-Two Thousand One Hundred Fifty-Five

Basics

Value: -52156 → -52155 → -52154

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 19 × 61

Divisors: 1, 3, 5, 9, 15, 19, 45, 57, 61, 95

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1100101110111011

Octal: -145673

Duodecimal: -26223

Hexadecimal: -cbbb

Square: 2720144025

Square Root: 228.37469211801906

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 7's among the digits of all n-digit primes. A152279

Number of 4-block ordered bicoverings of an unlabeled n-set. A60091

Numbers n such that n and n+1 both have 24 divisors. A274362

Pisot sequence T(6,10), a(n) = floor(a(n-1)²/a(n-2)). A20741

Numbers k such that sopfr(k) = sopf(k+1), where sopf(k) = A008472(k) and sopfr(k) = A001414(k). A64675

Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982). A336658

Numbers n such that 2·n*k(n) is rational but not an integer, where k(n) is sum of successive remainders when computing the Euclidean algorithm for (1, 1/sqrt(n)) as defined in A086378 (MuPAD program is given there); numbers belonging to A086378 but not to A088900. A87414

Regular triangle T(n,k) of Dellac configurations with boundaries, n>=1 and k>=0. A343198