Properties of the Number 87971

Eighty-Seven Thousand Nine Hundred Seventy-One

Basics

Value: 87970 → 87971 → 87972

Parity: odd

Prime: No

Previous Prime: 87961

Next Prime: 87973

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 13 × 67 × 101

Divisors: 1, 13, 67, 101, 871, 1313, 6767, 87971

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011110100011

Octal: 253643

Duodecimal: 42AAB

Hexadecimal: 157a3

Square: 7738896841

Square Root: 296.59905596613083

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

Coefficients in a q-analog of the function LambertW(-2·x)/(-2·x), as a triangle read by rows. A152555

Absolute discriminants of imaginary quadratic number fields with elementary bicyclic 5-class group (5,5). A359871

Expansion of 1/(1 - ∑_k>=2 μ(k)²*x^k), where μ(k) is the Moebius function (A008683). A280197

Indices of Ulam prime triples, where u(k), u(k+1) and u(k+2) are all primes, and u(k) = A002858(k) are the Ulam numbers. A307330

Maximal term in Collatz-iteration started at 3ⁿ-1. A87971