Properties of the Number 22252

Twenty-Two Thousand Two Hundred Fifty-Two

Basics

Value: 22251 → 22252 → 22253

Parity: even

Prime: No

Previous Prime: 22247

Next Prime: 22259

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5563

Divisors: 1, 2, 4, 5563, 11126, 22252

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011101100

Octal: 53354

Duodecimal: 10A64

Hexadecimal: 56ec

Square: 495151504

Square Root: 149.17104276634927

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) = ∑_i=1..n C(i+3,4)². A86023

Numbers using only the digits 2 and 5, that are both curved and straight. A72961

a(n) = ∑_{k = 0..n} binomial(n+k-1, k)². A333592

Lexicographically earliest sequence of increasing numbers whose digits satisfy the "Fractal Jump" rule using only the digits 2 and 5: keep the first digit "d" of the sequence, then jump over the next "d" digits and keep the digit "e" on which you have landed. Jump now over the next "e" digits and keep the digit "f" on which you have landed, etc. The succession "def..." of kept digits is the sequence itself. A105647

Number triangle of sums of squared binomial coefficients. A110197

The fourth row of the ED1 array A167546. A167547

Numbers having four 2's in base 10. A43500

Number of semistandard Young tableaux over all partitions of 5 with maximal element <= n. A210427

Square array of Kekulé numbers for the mirror-symmetrical chevrons Ch(m,n), read by antidiagonals (m,n >= 0). A123349

G.f. A(x) satisfies A(A(x)) = (x+2·x²)/(1-2·x-4·x²). A199823