Properties of the Number -139456

One Hundred Thirty-Nine Thousand Four Hundred Fifty-Six

Basics

Value: -139457 → -139456 → -139455

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 2179

Divisors: 1, 2, 4, 8, 16, 32, 64, 2179, 4358, 8716

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010000011000000

Octal: -420300

Duodecimal: -68854

Hexadecimal: -220c0

Square: 19447975936

Square Root: 373.4380805434818

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232839

Difference between upper and lower member of a pair of adjacent perfect powers A340700 and A340701, both with exponents > 2. A340706

Number of arrays of median of three adjacent elements of some length n+2 0..5 array, with no adjacent equal elements in the latter. A229009

Number of (1+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232840

a(n) = n! * ∑_{k=0..floor(n/2)} (k+1)^k-1 / (2^k * k! * (n-2·k)!). A362524