Properties of the Number 67279

Sixty-Seven Thousand Two Hundred Seventy-Nine

Basics

Value: 67278 → 67279 → 67280

Parity: odd

Prime: No

Previous Prime: 67273

Next Prime: 67289

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 19 × 3541

Divisors: 1, 19, 3541, 67279

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000011011001111

Octal: 203317

Duodecimal: 32B27

Hexadecimal: 106cf

Square: 4526463841

Square Root: 259.3819577380046

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(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 3, where m = 2·n - 2 - 2^p+1 and p is the unique integer such that 2^p < n-1 <= 2^p+1, starting with a(1) = 1 and a(2) = 3. A49919

a(n) = 80·n² - 1. A158774

McKay-Thompson series of class 20a for Monster. A58556

Least number beginning with prime(n) such that every concatenation is a prime. A90508

Factorial expansion of ζ(2) : ζ(2) = ∑_n>=1 a(n)/n!. A67279