Properties of the Number 85405

Eighty-Five Thousand Four Hundred Five

Basics

Value: 85404 → 85405 → 85406

Parity: odd

Prime: No

Previous Prime: 85381

Next Prime: 85411

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 19 × 29 × 31

Divisors: 1, 5, 19, 29, 31, 95, 145, 155, 551, 589

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110110011101

Octal: 246635

Duodecimal: 41511

Hexadecimal: 14d9d

Square: 7294014025

Square Root: 292.24133862272123

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

Square array T(n,d) read by antidiagonals: number of structurally-different guillotine partitions of a d-dimensional box in R^d by n hyperplanes. A103209

a(n) = (1/n)*∑_i=0..n-1 C(n,i)*C(n,i+1)*4ⁱ*5^n-i, a(0) = 1. A133305

Structured great rhombicubeoctahedral numbers. A100146

a(n) = (1/n) * ∑_i=0..n-1 C(n,i)*C(n,i+1)*(n-1)ⁱ*n^n-i for n>=1, a(0)=1. A103212

Triangle related to guillotine partitions of a k-dimensional box by n hyperplanes. A107702

Products of emirpimes pairs, sorted. A158126

Number of minimal dominating sets in the n X n king graph. A286881

Values of k such that 100k+1, 100k+3, 100k+7, 100k+9, 100k+13, 100k+27 are consecutive primes. A216290

Triangle read by rows, T(n, k) = binomial(n, k)*hypergeom([k-n, n+1], [k+2], -4), for n >= 0 and 0 <= k <= n. A297899

Number of rooted ordered trees with n nodes such that the degree of each node is less than or equal to its depth plus one. A382060