Properties of the Number 86999

Eighty-Six Thousand Nine Hundred Ninety-Nine

Basics

Value: 86998 → 86999 → 87000

Parity: odd

Prime: No

Previous Prime: 86993

Next Prime: 87011

Digit Sum: 41

Digital Root: 5

Palindrome: No

Factorization: 11 ² × 719

Divisors: 1, 11, 121, 719, 7909, 86999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101001111010111

Octal: 251727

Duodecimal: 4241B

Hexadecimal: 153d7

Square: 7568826001

Square Root: 294.9559289114223

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

Harmonic mean of digits is 8. A62185

a(n) is the smallest k such that A342068(k) = n. A342069

Numbers k such that φ(k) - k = φ(k') - k', where k' is the arithmetic derivative of k and φ(k) is the Euler totient function. A239940

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 47 ones. A31815

Periodic part of decimal expansion of 1/p for those primes having a periodic part of even length. A86999

A symmetrical triangle sequence based on:q=1/12;t(n,m,q)=12*(Binomial[n, m]*(1 - q) + (((n + m + 1)!/((n + 1)!* m!)) + ((2·n - m + 1)!/((n + 1)!*(n - m)!)))*q). A174948