Properties of the Number 22139

Twenty-Two Thousand One Hundred Thirty-Nine

Basics

Value: 22138 → 22139 → 22140

Parity: odd

Prime: No

Previous Prime: 22133

Next Prime: 22147

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 13 ² × 131

Divisors: 1, 13, 131, 169, 1703, 22139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011001111011

Octal: 53173

Duodecimal: 1098B

Hexadecimal: 567b

Square: 490135321

Square Root: 148.79180084937477

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) = n² + a(n-1), with a(1)=0. A168559

Numerator of A166100(A166101(n))/A166102(n). A166272

Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A371085

Numerators of the continued fraction convergents of the decimal concatenation of the prime-indexed primes. A128850

Retrograde trajectory of 13 under map n -> A132948(n). A132947

Sum of squares of numbers less than n that do not divide n. A276984

From George Gilbert's marks problem: jumping 4 marks at a time (initial positions). A19595

Numbers k that divide 10^k + 3^k. A45589

Numbers that are the product of 3 prime factors whose concatenation is a palindrome. A46452

Numbers k such that (142·10^k - 7)/9 is prime. A282256