Properties of the Number 27825

Twenty-Seven Thousand Eight Hundred Twenty-Five

Basics

Value: 27824 → 27825 → 27826

Parity: odd

Prime: No

Previous Prime: 27823

Next Prime: 27827

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 ² × 7 × 53

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 53, 75

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110010110001

Octal: 66261

Duodecimal: 14129

Hexadecimal: 6cb1

Square: 774230625

Square Root: 166.80827317612278

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 partitions of n of the form a₁*b₁² + a₂*b₂² + ...; number of semisimple rings with pⁿ elements for any prime p. A4101

Scaled array A078740 ((3,2)-Stirling2). A90452

Number of ways to write n as an ordered sum of 7 nonprime numbers. A341484

Fifth column (m=6) of array A090452. A91026

a(n) = Fibonacci(n)*(Fibonacci(n-1)² + Fibonacci(n+1)²). A99014

Number of dominating sets in the triangular honeycomb bishop graph. A290941

a(n) = (2·n+1)*(10·n+1). A33574

Product of all distinct nonzero numbers that can be formed from the digits of n. A61497

a(n) = φ(C(n)) / gcd(C(n)-1, φ(C(n))), where C(n) is the n-th Cullen number. A195418

Numbers k such that the digits of k^1/10 begin with k. A331497