Properties of the Number 86870

Eighty-Six Thousand Eight Hundred Seventy

Basics

Value: 86869 → 86870 → 86871

Parity: even

Prime: No

Previous Prime: 86869

Next Prime: 86923

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 7 × 17 × 73

Divisors: 1, 2, 5, 7, 10, 14, 17, 34, 35, 70

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001101010110

Octal: 251526

Duodecimal: 42332

Hexadecimal: 15356

Square: 7546396900

Square Root: 294.737171052448

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 distinct parts. A294288

Second elementary symmetric function of the first n terms of (1,2,4,8,...). A203241

Expansion of ∏_k>=1 (1 - x^k)²¹. A10827

Eigentriangle of triangle A022166: T(n,k) = A022166(n,k) * A125812(k). A143774

Number of set partitions of [n] into exactly four blocks such that all odd elements are in blocks with an odd index and all even elements are in blocks with an even index. A274868

Primes equal to a product of twin primes minus 1 divided by 2. A86870

Number of partitions of 2ⁿ into powers of 2 less than or equal to 256. A210777