Properties of the Number 77270

Seventy-Seven Thousand Two Hundred Seventy

Basics

Value: 77269 → 77270 → 77271

Parity: even

Prime: No

Previous Prime: 77269

Next Prime: 77279

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 7727

Divisors: 1, 2, 5, 10, 7727, 15454, 38635, 77270

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010110111010110

Octal: 226726

Duodecimal: 38872

Hexadecimal: 12dd6

Square: 5970652900

Square Root: 277.9748190034486

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

Triangle, read by rows, where diagonals are successive self-convolutions of A108447. A118343

G.f.: exp( ∑_n>=1 A322201(n)*xⁿ/n ), where A322201(n) is the coefficient of xⁿ*yⁿ/(2·n) in ∑_n>=1 -log(1 - (xⁿ + yⁿ)). A322202

Numbers k such that k-1, k-3, k-7 and k-9 are all prime. A64974

Self-convolution square of A108447. A118341

a(1)=2, a(2)=2, a(n)=a(n-2)+floor(a(n-2)*a(n-1)/(a(n-2)+a(n-1))). A173091

Even numbers such that the sum of the odd divisors is a Fibonacci number F and the sum of the even divisors is 2F. A274062

G.f.: exp( ∑_n>=1 A322203(n)*xⁿ/n ), where A322203(n) is the coefficient of xⁿ*yⁿ/n in ∑_n>=1 -log(1 - (xⁿ + yⁿ)). A322204

Main diagonal of square table A322200. A322201

Number of (n+1)X(7+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal. A232588

Duplicate of A076048. A77270