Properties of the Number 88520

Eighty-Eight Thousand Five Hundred Twenty

Basics

Value: 88519 → 88520 → 88521

Parity: even

Prime: No

Previous Prime: 88513

Next Prime: 88523

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 5 × 2213

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 2213, 4426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101100111001000

Octal: 254710

Duodecimal: 43288

Hexadecimal: 159c8

Square: 7835790400

Square Root: 297.5231083462258

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(1)=1. a(n) = ∑_{1<=k<n, gcd(k,n(n+1))=1} a(k). A125596

a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^p+1, with a(1) = 1, a(2) = 2, and a(3) = 1. A49950

a(n) = (n + 1)*(4·n² + 14·n + 9)/3. A268484

Permutation of natural numbers generated by 3-rowed array shown below. A88520