Properties of the Number 12770

Twelve Thousand Seven Hundred Seventy

Basics

Value: 12769 → 12770 → 12771

Parity: even

Prime: No

Previous Prime: 12763

Next Prime: 12781

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 1277

Divisors: 1, 2, 5, 10, 1277, 2554, 6385, 12770

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000111100010

Octal: 30742

Duodecimal: 7482

Hexadecimal: 31e2

Square: 163072900

Square Root: 113.00442469213318

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

a(n) = prime(n)² + 1. A66872

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318068

The smallest numbers of every class in a classification of positive numbers (see comment). A247395

Number of triangles in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A332606

4-step Fibonacci sequence starting with 1, 1, 0, 1. A251704

a(n) = 81·n² - 72·n + 17. A154277

Bihappy numbers: numbers that reach 1 under iteration of the sum-of-squares-of-two-digits map s₂. A257795

Volume of sphere (rounded down) with the diameter equal to n. A228272

Number of k < 2ⁿ that are neither squarefree nor prime powers. A372403

Least K such that K*(prime(100·n)^100·n)-1 is prime with prime(n)=n-th prime. A129245