Properties of the Number -253440

Two Hundred Fifty-Three Thousand Four Hundred Forty

Basics

Value: -253441 → -253440 → -253439

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁹ × 3 ² × 5 × 11

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -111101111000000000

Octal: -757000

Duodecimal: -102800

Hexadecimal: -3de00

Square: 64231833600

Square Root: 503.42824712167277

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: T(0,0) = 1; T(n,k) = -2·T(n-1,k) + 3·T(n-2,k-1) for 0 <= k <= floor(n/2); T(n,k)=0 for n or k < 0. A302747

Triangle read by rows: T(0,0) = 1; T(n,k) = -2 T(n-1,k) + 3·T(n-3,k-1) for k = 0..floor(n/3); T(n,k)=0 for n or k < 0. A317503

Coefficients of powers of two Hadamard characteristic polynomials: M(n)=Hadamard[2ⁿ] except for 12. A158234

a(n) = A181089(2·n+1,n)/(n+2). A181088

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n, having k ddu's [here u = (1,1) and d = (1,-1)]. A91894

Number T(n,k) of permutations of {1,2,...,n} that result in a binary search tree of height k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A195581

Triangle read by rows: T(n,k) = number of paths of n upsteps U and n downsteps D that contain k UUDs. A51288

Number T(n,k) of permutations of {1,2,...,n} that result in a binary search tree of height k; triangle T(n,k), k>=0, k<=n<=2^k-1, read by columns. A244108

Number of strings over Z₄ of length n with trace 0 and subtrace 2. A68774

Number of strings over Z₄ of length n with trace 2 and subtrace 2. A68790