Properties of the Number 15958

Fifteen Thousand Nine Hundred Fifty-Eight

Basics

Value: 15957 → 15958 → 15959

Parity: even

Prime: No

Previous Prime: 15937

Next Prime: 15959

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 79 × 101

Divisors: 1, 2, 79, 101, 158, 202, 7979, 15958

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111001010110

Octal: 37126

Duodecimal: 929A

Hexadecimal: 3e56

Square: 254657764

Square Root: 126.32497773599646

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

Sum of the fourth powers of the parts in the partitions of n into two parts. A294271

Number of set partitions of [n] such that for each block all absolute differences between consecutive elements are <= three. A287275

The number of ways to tile (with squares and rectangles) a 2 X (n+2) strip with the upper left and upper right squares removed. A316726

a(n) = ∑_k=0..n φ(k² + 1), where φ is the Euler totient function (A000010). A333170

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum not 2 3 6 or 7 and every diagonal and antidiagonal sum 2 3 6 or 7. A251887

a(n) = A086330(prime(n)). A371035

Number of partitions satisfying cn(0,5) + cn(2,5) + cn(3,5) < cn(1,5) + cn(4,5). A39881

Let P(n) = primorial(n) = A002110(n); a(n) is the number of primes q < P(n) such that P(n) - q is also prime and q²==1 (mod P(n)). A336093

a(n) is the number of different hooklength lists of the plane partitions of n. A381332

Numbers k such that k | 10^k + 1. A15958