Properties of the Number 27665

Twenty-Seven Thousand Six Hundred Sixty-Five

Basics

Value: 27664 → 27665 → 27666

Parity: odd

Prime: No

Previous Prime: 27653

Next Prime: 27673

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 11 × 503

Divisors: 1, 5, 11, 55, 503, 2515, 5533, 27665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110000010001

Octal: 66021

Duodecimal: 14015

Hexadecimal: 6c11

Square: 765352225

Square Root: 166.3279892261071

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 n such that the decimal expansions of both n and n² have 2 as smallest digit and 7 as largest digit. A257123

a(n) is the smallest number which can be represented as the sum of n distinct nonzero squares in exactly n ways, or 0 if no such number exists. A350241

Number of decimal digits in B(10ⁿ) where B(k) is the k-th Bell number. A113015

Number of -n..n arrays x(0..3) of 4 elements with zero sum, and adjacent elements not both strictly positive and not both strictly negative. A199899

Principal diagonal of the convolution array A213778. A213779

Numbers k such that k and k² use only the digits 2, 3, 5, 6 and 7. A137080

Alternating partial sums of the Floor-Sqrt transform of Catalan numbers. A192654

a(n)/100000 gives log₁₀(n) to 5 places. A27665