Properties of the Number 7138

Seven Thousand One Hundred Thirty-Eight

Basics

Value: 7137 → 7138 → 7139

Parity: even

Prime: No

Previous Prime: 7129

Next Prime: 7151

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 43 × 83

Divisors: 1, 2, 43, 83, 86, 166, 3569, 7138

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101111100010

Octal: 15742

Duodecimal: 416A

Hexadecimal: 1be2

Square: 50951044

Square Root: 84.4866853415377

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

Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable. A18227

Minimal number of people to give a 50% probability of having at least n coincident birthdays in one year. A14088

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252305

T(n,k) is the number of length n+1 0..2·k arrays with the sum of the absolute values of adjacent differences equal to n·k. A249982

Expansion of ∏_k>=1 (1+x^3·k-1)^k. A262878

Number A(n,k) of hybrid k-ary trees with n internal nodes; square array A(n,k), n>=0, k>=1, read by antidiagonals. A245049

Quotient of LCM of prime(n+1)-1 and prime(n)-1 and GCD of the same two numbers. A83555

Numbers n such that A234519(n) = n. A234524

Numbers that are the sum of eight fourth powers in five or more ways. A345580

Numbers that are the sum of eight fourth powers in exactly five ways. A345837