Properties of the Number 90026

Ninety Thousand Twenty-Six

Basics

Value: 90025 → 90026 → 90027

Parity: even

Prime: No

Previous Prime: 90023

Next Prime: 90031

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 45013

Divisors: 1, 2, 45013, 90026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101111110101010

Octal: 257652

Duodecimal: 44122

Hexadecimal: 15faa

Square: 8104680676

Square Root: 300.04333020415567

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

a(n) is the least semiprime > a(n-1) whose digits do not appear in a(n-1). A131220

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 23. A31611

Number of planar partitions of n decreasing across rows. A3293

Number of distinct lines through the origin in 4-dimensional cube of side length n. A90026

Numbers k such that binomial(2k,k) is not divisible by 3, 5 or 7. A30979

Number of integers k such that σ(k) < n. A74753

Balancing Wieferich primes: primes p that divide their Pell quotients, where the Pell quotient of p is A000129(p - (2/p))/p and (2/p) is a Jacobi symbol. A238736

Decimal expansion of lim_i->oo c(i)/i, where c(i) is the number of integers k such that σ(k) < i (A074753). A308039

Numbers n such that gcd( binomial(2n,n), 3·5*7·11 ) = 1. A151750

Number of matched trees with 2n nodes. A5751