Properties of the Number 22798

Twenty-Two Thousand Seven Hundred Ninety-Eight

Basics

Value: 22797 → 22798 → 22799

Parity: even

Prime: No

Previous Prime: 22787

Next Prime: 22807

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 11399

Divisors: 1, 2, 11399, 22798

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100100001110

Octal: 54416

Duodecimal: 1123A

Hexadecimal: 590e

Square: 519748804

Square Root: 150.99006589838947

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)²-3. A182200

Indices where prime(n) first appears in A373902. A371618

Values of c such that p²-c and p²+c are both positive primes, for the special case when p²-c = 3, or c = p²-3, where p is a prime. A274610

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NES = ν-87 H4[Al4Si64O136].nH2O starting with a T3 atom. A19204

G.f.: x^k²/(mul(1-x^2·i,i=1..k)*mul(1+x^2·r-1,r=1..oo)) with k=3. A246579

Total number of torsion-free congruence subgroups of PSL(2,Z) of genus n. A258696

Triangle read by rows: the multiset transform of the balanced binary Lyndon words (A022553). A289978

a(n) = P(n) + c(n), where P(1) = 1, P(n) = (n-1)-st prime for n >= 2, c(n) = n-th number not in sequence P. A22798

Number of nX4 0..1 arrays with every element unequal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318020