Properties of the Number 30858

Thirty Thousand Eight Hundred Fifty-Eight

Basics

Value: 30857 → 30858 → 30859

Parity: even

Prime: No

Previous Prime: 30853

Next Prime: 30859

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 37 × 139

Divisors: 1, 2, 3, 6, 37, 74, 111, 139, 222, 278

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100010001010

Octal: 74212

Duodecimal: 15A36

Hexadecimal: 788a

Square: 952216164

Square Root: 175.66445286397587

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

Sum of the third largest parts in the partitions of n into 8 parts. A308996

Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 2w+x+y>1. A211618

a(0)=0, a(1)=0; for n>1, a(n) = a(n-1) + (n-4)*a(n-2) + 1. A220699

Decimal part of a(n)^1/4 starts with a 'nine digits' anagram. A34279

a(1) = 1, a(2) = 1, a(n) = sum of τ(n) previous terms, where τ(n) is the number of divisors of n. A87549

[ exp(3/20)*n! ]. A30858

G.f. A(x) satisfies: A(x) = x + 2·x*A(x) + 3·x²*A(A(x)) + 4·x³*A(A(A(x))) +... A154259