Properties of the Number 93870

Ninety-Three Thousand Eight Hundred Seventy

Basics

Value: 93869 → 93870 → 93871

Parity: even

Prime: No

Previous Prime: 93851

Next Prime: 93871

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 7 × 149

Divisors: 1, 2, 3, 5, 6, 7, 9, 10, 14, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110111010101110

Octal: 267256

Duodecimal: 463A6

Hexadecimal: 16eae

Square: 8811576900

Square Root: 306.3821143604829

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

Amicable triples: numbers such that σ(x) = σ(y) = σ(z) = x+y+z, x<y<z. We order these triples according to the common value of σ. Sequence gives y numbers. A125491

a(n) = prime(n)*T(n), where T = A000217. A196421

Row sums in A083175. A83175

Let a₀ = 1 and for n > 0, let a_n be the smallest positive integer not already in the sequence such that (a₀ + a₁ x + a-2x² + ....)^1/3 has integer coefficients. (Hanna's A083349). Let f(n) = n th term in the present sequence. Then a₀ + a₁ x + a₂ x² + ... = (1-x)^f(1) (1-x²)^f(2) (1-x³)^f(3) .... A110879

Triangle read by rows: T(n,k) is the k-th prime = -1 (mod n), 1 <= k <= n. A93870