Properties of the Number 89424

Eighty-Nine Thousand Four Hundred Twenty-Four

Basics

Value: 89423 → 89424 → 89425

Parity: even

Prime: No

Previous Prime: 89417

Next Prime: 89431

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ⁵ × 23

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101110101010000

Octal: 256520

Duodecimal: 43900

Hexadecimal: 15d50

Square: 7996651776

Square Root: 299.0384590650507

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 with an even number of prime factors (counted with multiplicity) that can be factored into squarefree semiprimes (A320911) but cannot be factored into distinct semiprimes (A320892). A320893

Numbers with prime factorization pq^4r^5. A190468

Numbers k such that σ(k² + 1) == 0 (mod k). A67719

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 26. A31704

a(n) = T(n)² - n², where T(n) is a triangular number. A85740

a(n) = 529·n² + 23. A158631

a(n) = 169·n² + n. A173275

Sum of absolute values of real and imaginary parts of the coefficients in the expansion of 1 / (1 - x - I·x²), where I²=-1. A218137

The number of n-permutations having precisely two cycles whose lengths are relatively prime. A194364

a(n) = n! * [xⁿ] ∏_{k=1..n, gcd(n,k) = 1} (1 + x^k/k). A338439