Properties of the Number 90047

Ninety Thousand Forty-Seven

Basics

Value: 90046 → 90047 → 90048

Parity: odd

Prime: No

Previous Prime: 90031

Next Prime: 90053

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 53 × 1699

Divisors: 1, 53, 1699, 90047

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101111110111111

Octal: 257677

Duodecimal: 4413B

Hexadecimal: 15fbf

Square: 8108462209

Square Root: 300.078323109151

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

Numbers k such that 279·2^k + 1 is prime. A53356

a(1)=1; for n>1, a(n) gives number of ways to write n as n = x^y, 2 <= x, 1 <= y. A89723

Number of equivalence classes of n-valued Post functions of 1 variable under action of complementing group C(1,n). A56665

Continued fraction for ∑_k>=0 1/3^{2^k}. A4200

a(n) = [xⁿ] ( E(x)/E(-x) )ⁿ where E(x) = exp( ∑_{k >= 1} A005258(k)*x^k/k ). A362722

T(n,k) = ∑_d∣k φ(d)*n^k/d/k, triangle read by rows, T(n,k) for n >= 1 and 1 <= k <= n. A54630

Continued fraction for Liouville's number (A012245). A58304

a(n) = ∑_k=0..n binomial(n, k)*binomial(2·n + k, k)*2^k. A339710

Length of longest contiguous block of 0's in binary expansion of n². A90047

Maximal diameter of connected k-regular graphs on 2·n nodes written as array T(n,k), 2 <= k < 2·n. A296525