Properties of the Number 22449

Twenty-Two Thousand Four Hundred Forty-Nine

Basics

Value: 22448 → 22449 → 22450

Parity: odd

Prime: No

Previous Prime: 22447

Next Prime: 22453

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 1069

Divisors: 1, 3, 7, 21, 1069, 3207, 7483, 22449

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011110110001

Octal: 53661

Duodecimal: 10BA9

Hexadecimal: 57b1

Square: 503957601

Square Root: 149.82990355733398

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

Triangle read by rows of Stirling numbers of first kind, s(n,k), n >= 1, 1 <= k <= n. A8275

Triangle of Stirling numbers of first kind, s(n,k), n >= 0, 0 <= k <= n. A48994

Triangle of unsigned Stirling numbers of the first kind (see A048994), read by rows, T(n,k) for 0 <= k <= n. A132393

Triangle T(n,k), 0 <= k <= n, read by rows, giving coefficients of the polynomial (x+1)(x+2)...(x+n), expanded in increasing powers of x. T(n,k) is also the unsigned Stirling number |s(n+1, k+1)|, denoting the number of permutations on n+1 elements that contain exactly k+1 cycles. A130534

Triangle read by rows: T(n,k) = |s(n,n+1-k)|, where s(n,k) are the signed Stirling numbers of the first kind A008276 (1 <= k <= n; in other words, the unsigned Stirling numbers of the first kind in reverse order). A94638

Triangle of Stirling numbers of first kind, s(n, n-k+1), n >= 1, 1 <= k <= n. Also triangle T(n,k) giving coefficients in expansion of n!*binomial(x,n)/x in powers of x. A8276

Number of reversed integer partitions of 2n whose half-alternating sum is 0. A357639

Unsigned Stirling numbers of first kind s(n,5). A482

Alfred Moessner's factorial triangle. A125714

Stirling numbers of first kind s(n+4, n). A915