Properties of the Number 84320

Eighty-Four Thousand Three Hundred Twenty

Basics

Value: 84319 → 84320 → 84321

Parity: even

Prime: No

Previous Prime: 84319

Next Prime: 84347

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 5 × 17 × 31

Divisors: 1, 2, 4, 5, 8, 10, 16, 17, 20, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100101100000

Octal: 244540

Duodecimal: 40968

Hexadecimal: 14960

Square: 7109862400

Square Root: 290.3790626061046

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 diagonal polyominoes with n cells. A56841

Lesser of two consecutive numbers each divisible by a fifth power. A68783

Number of non-equivalent n-fold branched coverings of the projective plane with two cyclic branch points. A113947

Expansion of 1/(1+x²-x³+x⁴). A129903

Number of Carlitz compositions of n with exactly one descent. A241691

a(n) = 3·a(n-1) - 3·a(n-2) + 2·a(n-3) - 2·a(n-4) + a(n-5) for n >= 10, a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 12, a(4) = 20, a(5) = 32, a(6) = 50, a(7) = 77, a(8) = 116, a(9) = 174. A289115

Index of the first superabundant number k having abundance >= n. A240074

Number of powers of two between 2 consecutive factorials (2! including). A84320