Properties of the Number 88721

Eighty-Eight Thousand Seven Hundred Twenty-One

Basics

Value: 88720 → 88721 → 88722

Parity: odd

Prime: Yes

Previous Prime: 88681

Next Prime: 88729

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 88721

Divisors: 1, 88721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101101010010001

Octal: 255221

Duodecimal: 43415

Hexadecimal: 15a91

Square: 7871415841

Square Root: 297.86070569982877

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) = ∑_k=1..n floor(n/k) * 3^k-1. A344814

SanD-68 primes p: such that p+d is also prime and sum of digits A007953(p(p+d)) = d, with d = 68. A307474

Primes p with P(p+1) also prime, where P(.) is the partition function (A000041). A234900

Unique monotone sequence satisfying a(a(a(a(n)))) = 2n. A88721

Numbers n such that 997·n - 1009 is prime. A108341