Properties of the Number 61667

Sixty-One Thousand Six Hundred Sixty-Seven

Basics

Value: 61666 → 61667 → 61668

Parity: odd

Prime: Yes

Previous Prime: 61657

Next Prime: 61673

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 61667

Divisors: 1, 61667

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000011100011

Octal: 170343

Duodecimal: 2B82B

Hexadecimal: f0e3

Square: 3802818889

Square Root: 248.32841158433723

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 having only {1, 6, 7} as digits. A260891

Index of the first occurrence of a string of exactly n consecutive odd digits in the decimal expansion of π. A239316

Number of partitions of 3n into at most 5 parts. A256525

Number of partitions of 4n into at most 5 parts. A256539

Primes p such that σ(p+3) = σ(p-3). A169596

Primes which contain the fax number of the beast (667). A321001

a(n) = Fibonacci(2·n+1) - 2^n-1. A61667

Expansion of (1+x·C⁴)*C³, where C = (1-(1-4·x)^1/2)/(2·x) is g.f. for Catalan numbers, A000108. A71264