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Properties of the Number 27870

Twenty-Seven Thousand Eight Hundred Seventy

Basics

Value: 27869 → 27870 → 27871

Parity: even

Prime: No

Previous Prime: 27851

Next Prime: 27883

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 929

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 929, 1858

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110011011110

Octal: 66336

Duodecimal: 14166

Hexadecimal: 6cde

Square: 776736900

Square Root: 166.9431040804022

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

Number of integer partitions of n whose negated run-lengths are not unimodal. A332639
Diagonal in array of n-gonal numbers A081422. A81437
Smallest palindromic numbers of length 4 in two bases differing by n. A216843
Number of pairs with two different elements which can be obtained by selecting unique elements from two sets with n+1 and n2 elements respectively and n common elements. A85490
Number of points in Nn of norm <= 2. A55417
a(0)=1; a(n) = lcm((number of earlier terms which are coprime to n), (sum of the earlier terms which are coprime to n)). A128268
Composite n such that (n-1)*φ(n) is a perfect square. A69953
a(n) = 961·n + 1. A158414
Numbers that are 4-digit palindromes in at least 2 bases. A180453
Numbers k such that Bernoulli number Bk has denominator 14322. A295588