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Properties of the Number 22840

Twenty-Two Thousand Eight Hundred Forty

Basics

Value: 22839 → 22840 → 22841

Parity: even

Prime: No

Previous Prime: 22817

Next Prime: 22853

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 3 × 5 × 571

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 571, 1142

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100100111000

Octal: 54470

Duodecimal: 11274

Hexadecimal: 5938

Square: 521665600

Square Root: 151.12908389850048

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

Sum of smallest parts of all partitions of n. A46746
Sum of squares of terms in rows of triangle A104967. A104969
a(n+1)-+a(n)=prime, a(n+1)*a(n)=Average of twin prime pairs, a(1)=3,a(2)=10. A154496
G.f.: ∏k>=1 (1 + 2·xk2) / (1-xk). A280224
Sum of squares of terms in even-indexed rows of triangle A104967. A104970
Number of nondecreasing -2..2 vectors of length n whose dot product with some other -2..2 vector equals n. A226334
Number of non-isomorphic set multipartitions (multisets of sets) of weight n without endpoints or singletons. A369926
Coordination sequence for MgCu2, Mg position. A9931
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NON = Nonasil-[ 4158 ] [Si88O176].4R starting with a T5 atom. A19211
Numbers k such that 7·Rk+2 - 5·10k is prime, where Rk = 11...1 is the repunit (A002275) of length k. A257028