Properties of the Number 70139

Seventy Thousand One Hundred Thirty-Nine

Basics

Value: 70138 → 70139 → 70140

Parity: odd

Prime: Yes

Previous Prime: 70123

Next Prime: 70141

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 70139

Divisors: 1, 70139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000111111011

Octal: 210773

Duodecimal: 3470B

Hexadecimal: 111fb

Square: 4919479321

Square Root: 264.8376861400205

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

Lesser of twin primes (p,q=p+2) such that p·q-p-q and p·q+p+q are primes. A126334

Safe primes p such that p + 24 is also a safe prime. A274381

Primes formed by concatenating n and 2n-1. A309851

Primes p = prime(k) whose decimal expansion contains the string 13 and such that digsum(p) = disgum(k) where digsum = A007953 is the sum of digits function. A169645

Number of isosceles integer triangles with perimeter n having integral area. A70139