Properties of the Number 22426

Twenty-Two Thousand Four Hundred Twenty-Six

Basics

Value: 22425 → 22426 → 22427

Parity: even

Prime: No

Previous Prime: 22409

Next Prime: 22433

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 11213

Divisors: 1, 2, 11213, 22426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101011110011010

Octal: 53632

Duodecimal: 10B8A

Hexadecimal: 579a

Square: 502925476

Square Root: 149.75313018431368

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) is the number of divisors of n-th even perfect number. A61645

Sequence is {a(2,n)}, where a(m,n) is defined at sequence A111518. A111520

Semiprimes in A054556. A113693

Number of unrooted directed trees on n nodes with a red root. A97630

Numbers m such that (1+i)^m - i is a Gaussian prime. A103329

Number of n X 2 nonnegative integer arrays with upper left 0 and lower right n+2-4 and value increasing by 0 or 1 with every step right or down. A252870

Decimal part of cube root of a(n) starts with 2: first term of runs. A34128

Number of (n+1) X 4 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively. A204646

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19. A31607

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 1), (0, -1, 1), (0, 0, 1), (1, 1, 0)}. A150231