Properties of the Number -144128

One Hundred Forty-Four Thousand One Hundred Twenty-Eight

Basics

Value: -144129 → -144128 → -144127

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁸ × 563

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 256, 563

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -100011001100000000

Octal: -431400

Duodecimal: -6B4A8

Hexadecimal: -23300

Square: 20772880384

Square Root: 379.64193656654953

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(0) = a(1) = 1, a(2) = x, a(3) = 2x², a(n) = x*(n-1)*a(n-1) + ∑_j=2..n-2 (j-1)*a(j)*a(n-j), n>=4 and for x = 4. A113131

Concatenation of first 3 digits and last 3 digits of n-th perfect number. A138877

Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k blocks of length 2 (0 <= k <= floor(n/2)). A block of a permutation is a maximal sequence of consecutive integers which appear in consecutive positions. For example, the permutation 5412367 has 4 blocks: 5, 4, 123, and 67; one of them is of length 2. A184183