Properties of the Number 79121

Seventy-Nine Thousand One Hundred Twenty-One

Basics

Value: 79120 → 79121 → 79122

Parity: odd

Prime: No

Previous Prime: 79111

Next Prime: 79133

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 89 × 127

Divisors: 1, 7, 89, 127, 623, 889, 11303, 79121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010100010001

Octal: 232421

Duodecimal: 39955

Hexadecimal: 13511

Square: 6260132641

Square Root: 281.284553432996

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) = (4·n³ - 12·n² + 14·n + 3)/3. A161703

a(n) = a(n-1) + 3·a(n-2) - 2·a(n-3) - 2·a(n-4), where a(0) = 1, a(1) = 2, a(2) = 3, a(3) = 4. A295619

Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=1 and l=-1. A176830

a(n+1) = floor((1/n)*(∑_k=1..n a(k)⁽ⁿ⁺¹/k))), given a(0)=1, a(1)=3, a(2)=8. A79121