Properties of the Number 77080

Seventy-Seven Thousand Eighty

Basics

Value: 77079 → 77080 → 77081

Parity: even

Prime: No

Previous Prime: 77069

Next Prime: 77081

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5 × 41 × 47

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 41, 47

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010110100011000

Octal: 226430

Duodecimal: 38734

Hexadecimal: 12d18

Square: 5941326400

Square Root: 277.6328510821441

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) = n*(n+1)*(7·n+2)/6. A255211

a(n) = 10·a(n-1) - 6·a(n-2), with a(0)=0, a(1)=1. A190988

a(n) = φ(σ(n) + φ(n)) = A000010(A000203(n) + A000010(n)) = A000010(A065387(n)). A77080

Least number k such that the sum of squares of positive divisors of k is the sum of two nonzero squares in exactly n ways. A274038