Properties of the Number 15952

Fifteen Thousand Nine Hundred Fifty-Two

Basics

Value: 15951 → 15952 → 15953

Parity: even

Prime: No

Previous Prime: 15937

Next Prime: 15959

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 997

Divisors: 1, 2, 4, 8, 16, 997, 1994, 3988, 7976, 15952

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11111001010000

Octal: 37120

Duodecimal: 9294

Hexadecimal: 3e50

Square: 254466304

Square Root: 126.30122723077555

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

T(n,k)=Number of nXk 0..2 arrays with top left element 0, horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and antidiagonal differences never 0. A229402

Partial sums of ∑_k=1..n n/gcd(n,k), or partial sums of ∑_d∣n d*φ(d) (see A057660). A174405

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)+1 are twin primes with p(h) = h-th prime. A129310

Number of Level 2 hexagonal polyominoes with cheesy blocks and n cells. A167012

Floor(-1/n + 1/log((2n+1)/(2n-1))). A227512

Round(-1/n + 1/log((2n+1)/(2n-1))). A227513

Positions of 0's in A330314. A330325

a(n) is the smallest positive integer k such that d(k) = d(k+n) = 2·n, where d(m) (A000005) is the number of positive divisors of m, or 0 if no such k exists. A137532

Number of n X 4 0..2 arrays with top left element 0, horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and antidiagonal differences never 0. A229398

Number of n X 6 0..2 arrays with top left element 0, horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and antidiagonal differences never 0. A229400