Properties of the Number 21952

Twenty-One Thousand Nine Hundred Fifty-Two

Basics

Value: 21951 → 21952 → 21953

Parity: even

Prime: No

Previous Prime: 21943

Next Prime: 21961

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 7 ³

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101010111000000

Octal: 52700

Duodecimal: 10854

Hexadecimal: 55c0

Square: 481890304

Square Root: 148.1620734196171

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

The cubes: a(n) = n³. A578

Product of divisors of n. A7955

Numbers of form 2ⁱ*7^j, with i, j >= 0. A3591

Exponentially evil numbers. A262675

Numbers k such that ∑_j p_j = ∑_j e_j where ∏_j p_j^e_j is the prime factorization of k. A54411

Numbers whose prime factors are 2 and 7. A33847

a(n) = (3·n + 1)³. A16779

Even cubes: a(n) = (2·n)³. A16743

a(n)= n^ω(n). A176029

a(n) = ∏_k>=0 (1 + floor(n/2^k)). A132269