Properties of the Number 70978

Seventy Thousand Nine Hundred Seventy-Eight

Basics

Value: 70977 → 70978 → 70979

Parity: even

Prime: No

Previous Prime: 70969

Next Prime: 70979

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 23 × 1543

Divisors: 1, 2, 23, 46, 1543, 3086, 35489, 70978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010101000010

Octal: 212502

Duodecimal: 350AA

Hexadecimal: 11542

Square: 5037876484

Square Root: 266.4169664266899

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

Numbers k such that 10^k + 5·R_k + 2 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A102937

Record-setting differences between adjacent elements of the Mian-Chowla sequence variant A051788. A80223

a(n) = ∑_k=1..n 2^k/gcd(n,k - 1). A338647

Smallest k such that ζ(4)-sum(i=1,k,1/i⁴) <= ζ(5)-sum(i=1,n,1/i⁵). A70978