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Properties of the Number 22418

Twenty-Two Thousand Four Hundred Eighteen

Basics

Value: 22417 → 22418 → 22419

Parity: even

Prime: No

Previous Prime: 22409

Next Prime: 22433

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 11 × 1019

Divisors: 1, 2, 11, 22, 1019, 2038, 11209, 22418

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101011110010010

Octal: 53622

Duodecimal: 10B82

Hexadecimal: 5792

Square: 502566724

Square Root: 149.72641717479252

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 tilings of a 4 X n rectangle using L tetrominoes and 2 X 2 tiles. A226322
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically. A253533
Number of maximal subsets of {1..n} containing n such that it is possible to choose a different binary index of each element. A370641
a(n) = 1331·n - 209. A157444
Exponential self-convolution of numbers of rooted trees on n nodes. A6850
The n-th highly composite number equals the a(n)-th composite number, for n >= 3. A74329
Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically. A253528
Triangle read by rows, T(n, k) = n! * [yk] [xn] exp(1/(1 - x)1 + y - 1), for 0 <= k <= n. A355267
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically. A253525
Numbers that are the sum of 5 positive 4th powers. A3339