Properties of the Number 87938

Eighty-Seven Thousand Nine Hundred Thirty-Eight

Basics

Value: 87937 → 87938 → 87939

Parity: even

Prime: No

Previous Prime: 87931

Next Prime: 87943

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 2 × 43969

Divisors: 1, 2, 43969, 87938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101011110000010

Octal: 253602

Duodecimal: 42A82

Hexadecimal: 15782

Square: 7733091844

Square Root: 296.5434200922354

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

Number of permutations of [n] avoiding {1243, 1324, 4231}. A294798

Triangle formed from even-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials U_n(x). A39599

Least number m > 0 such that 2^m == +-1 (mod 2n + 1). A3558

Let v(0) be the column vector (1,0,0,0)'; for n>0, let v(n) = [1 1 1 1 / 1 1 1 0 / 1 1 0 0/ 1 0 0 0] v(n-1). Sequence gives third entry of v(n). A91024

Coefficient array for the minimal polynomials of 2·cos(2*π/n) for n >= 1. A232624

Diagonal sums of Riordan array ((1-2x)/(1 - 3x + x²),x(1-x)/(1 - 3x + x²)). A147704

Prime hypotenuse of primitive Pythagorean triangles with odd short leg (or even long leg). A87938