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Properties of the Number 22255

Twenty-Two Thousand Two Hundred Fifty-Five

Basics

Value: 22254 → 22255 → 22256

Parity: odd

Prime: No

Previous Prime: 22247

Next Prime: 22259

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 4451

Divisors: 1, 5, 4451, 22255

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 101011011101111

Octal: 53357

Duodecimal: 10A67

Hexadecimal: 56ef

Square: 495285025

Square Root: 149.18109799837242

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

Number of parts > 1 in the last section of the set of partitions of n. A138135
Numbers using only the digits 2 and 5, that are both curved and straight. A72961
In the "3x+1" problem, let 1 denote a halving step and 0 denote an x->3x+1 step. Then a(n) is obtained by writing the sequence of steps needed to reach 1 from 2n and reading it as a decimal number. A125711
Number of parts in all partitions of 2n that do not contain 1 as a part. A182734
Index k in A095773 where a string of n identical values occurs. A96183
Semiprimes (A001358) made of nontrivial runs of identical digits. A116063
Composite numbers whose concatenation of their aliquot parts, in ascending order, is a palindrome. A249300
T(n,k) = number of n X k 0..3 arrays with entries increasing mod 4 by 0, 1 or 2 rightwards and downwards, starting with upper left zero. A222444
T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4. A240792
Numbers whose digits are in nondecreasing order in bases 9 and 10. A329299