Properties of the Number 65881

Sixty-Five Thousand Eight Hundred Eighty-One

Basics

Value: 65880 → 65881 → 65882

Parity: odd

Prime: Yes

Previous Prime: 65867

Next Prime: 65899

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 65881

Divisors: 1, 65881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000000101011001

Octal: 200531

Duodecimal: 32161

Hexadecimal: 10159

Square: 4340306161

Square Root: 256.67294364618954

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

Primes whose base-3 representation also is the base-2 representation of a prime. A235265

Primes of the form 2·n²+6·n+1. A176549

Number of integer partitions of n with fewer distinct parts than distinct divisors of parts. A371132

Primes p such that π(p) is obtained by dropping one of the digits of p in decimal expansion. A114924

Numbers k such that -3 is a quadratic residue (not necessarily coprime) modulo k, k + 1, k + 2 and k + 3. A318527

Primes associated with the indices in A362060. A362066

Number of compositions of n into 5 parts such that no two adjacent parts are equal. A106354

Numbers k such that the value π(k), the number of primes <= k, can be obtained deleting some of the repeating adjacent digits of k. A113898

Ultimate modulo 10: right-hand nonzero digit of n. A65881