Properties of the Number 77138

Seventy-Seven Thousand One Hundred Thirty-Eight

Basics

Value: 77137 → 77138 → 77139

Parity: even

Prime: No

Previous Prime: 77137

Next Prime: 77141

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 38569

Divisors: 1, 2, 38569, 77138

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010110101010010

Octal: 226522

Duodecimal: 38782

Hexadecimal: 12d52

Square: 5950271044

Square Root: 277.7372859376285

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: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k doublerises (i.e., UU's) (0 <= k <= floor(n/2) - 1 for n >= 2). A132279

a(0) = 0. If n is odd, a(n) = a(n-1) + n, otherwise a(n) = a(n-1) * n. A77138