Properties of the Number 87043

Eighty-Seven Thousand Forty-Three

Basics

Value: 87042 → 87043 → 87044

Parity: odd

Prime: No

Previous Prime: 87041

Next Prime: 87049

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 11 × 41 × 193

Divisors: 1, 11, 41, 193, 451, 2123, 7913, 87043

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101010000000011

Octal: 252003

Duodecimal: 42457

Hexadecimal: 15403

Square: 7576483849

Square Root: 295.03050689716815

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 n such that 3^{n - 3} is congruent to 1 modulo n. A242865

a(n) = ∑_k=0..n binomial(5·n+k+1,n-k). A390334

T(n,n-5), array T as in A038792. A38795

Number of n X 2 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order. A226866

Number of permutations of [n] avoiding {1243, 2314, 3412}. A294693

Partial quotients of the continued fraction of a number·such that exp(1) added to each partial quotient evaluates to x+2. A87043