Properties of the Number 85012

Eighty-Five Thousand Twelve

Basics

Value: 85011 → 85012 → 85013

Parity: even

Prime: No

Previous Prime: 85009

Next Prime: 85021

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 53 × 401

Divisors: 1, 2, 4, 53, 106, 212, 401, 802, 1604, 21253

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110000010100

Octal: 246024

Duodecimal: 41244

Hexadecimal: 14c14

Square: 7227040144

Square Root: 291.5681738461864

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

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 643", based on the 5-celled von Neumann neighborhood. A273314

Largest even k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists. A357573

For p = prime(n), a(n) is the smallest prime q such that pq is a base-2 pseudoprime; that is, 2^pq-1 = 1 mod pq; a(n) is 0 if no such prime exists. A85012

Primes whose square is the sum of the cubes of four primes, not necessarily distinct. A353263