Properties of the Number 12765

Twelve Thousand Seven Hundred Sixty-Five

Basics

Value: 12764 → 12765 → 12766

Parity: odd

Prime: No

Previous Prime: 12763

Next Prime: 12781

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 23 × 37

Divisors: 1, 3, 5, 15, 23, 37, 69, 111, 115, 185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000111011101

Octal: 30735

Duodecimal: 7479

Hexadecimal: 31dd

Square: 162945225

Square Root: 112.98229949863828

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

McKay-Thompson series of class 9B for the Monster group. A58091

Transform of A000027 by the T_1,1 transformation (see link). A136302

First trisection of A061037 (Balmer line series of the hydrogen atom). A142590

a(n) = prime(n)²-4. A166010

a(n) = (4·n+3)*(4·n+7). A85027

Primitive elements of A119432. A119433

Number of partitions of n such that 4*(least part) + 1 = greatest part. A363076

4-almost primes equal to the product of two successive semiprimes. A108215

Padovan-like sequence; a(0)=2, a(1)=1, a(2)=1, a(n) = a(n-2) + a(n-3). A141038

Quintisection A061037(5·n-2). A174850