Properties of the Number -139831

One Hundred Thirty-Nine Thousand Eight Hundred Thirty-One

Basics

Value: -139832 → -139831 → -139830

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 139831

Divisors: 1, 139831

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -100010001000110111

Octal: -421067

Duodecimal: -68B07

Hexadecimal: -22237

Square: 19552708561

Square Root: 373.9398347328083

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

Primes in A005891 = Centered pentagonal numbers: (5n² + 5n + 2)/2. A145838

Beginning with 13, least prime such that concatenation of first n terms and its digit reversal both are primes. A382898

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (0, 0, 1), (0, 1, -1), (1, 0, -1)}. A148502