Properties of the Number 2664

Two Thousand Six Hundred Sixty-Four

Basics

Value: 2663 → 2664 → 2665

Parity: even

Prime: No

Previous Prime: 2663

Next Prime: 2671

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 37

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101001101000

Octal: 5150

Duodecimal: 1660

Hexadecimal: a68

Square: 7096896

Square Root: 51.61395160225576

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

4 times triangular numbers: a(n) = 2·n*(n+1). A46092

Tetranacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4), with initial conditions a(0..3) = (0, 0, 1, 0). A1631

Number of integer partitions of n whose distinct parts are pairwise indivisible. A305148

Number of (necessarily strict) integer partitions of n with no two consecutive parts divisible. A328171

a(n) = 4·n*(2·n + 1). A33586

a(n) = lcm(p-1, p+1) where p is the n-th prime. A84921

Numbers k such that 3^k + 32 is prime. A219048

Positive integers n such that n⁶ + 1 is semiprime. A103854

Numbers k such that k²+1 and (k+2)²+1 are both prime; twin k²+1 primes. A96012

T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once. A268904