Properties of the Number 13129

Thirteen Thousand One Hundred Twenty-Nine

Basics

Value: 13128 → 13129 → 13130

Parity: odd

Prime: No

Previous Prime: 13127

Next Prime: 13147

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 19 × 691

Divisors: 1, 19, 691, 13129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001101001001

Octal: 31511

Duodecimal: 7721

Hexadecimal: 3349

Square: 172370641

Square Root: 114.58184847522752

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

Numbers that are the sum of 9 nonzero 8th powers. A3387

Composite numbers whose divisors (except 1) all contain the digit 9. A62680

Triangle read by rows in which row n lists n+1 terms, starting with n, such that the difference between successive terms is equal to n⁴ - 1. A162622

a(n) is the number of 4 element sets of distinct integer sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units. A389392

Triangle read by rows in which row n lists n terms, starting with n⁴ + n - 1, such that the difference between successive terms is equal to n⁴ - 1 = A123865(n). A162624

Triangle read by rows in which row n lists n terms, starting with n, such that the difference between successive terms is equal to n⁴ - 1 = A123865(n). A162623

Numbers k such that k and its reversal are both multiples of 19. A62907

Number of partitions of n into an even number of parts, the least being 2; also, a(n+2) = number of partitions of n into an odd number of parts, each >=2. A27194

a(n) is the smallest number that is the sum of n positive 6th powers in two ways. A343079

Indices where the cumulative sum of sin(2k+1)^2k+1 reaches a record high value. A387706