Properties of the Number 91875

Ninety-One Thousand Eight Hundred Seventy-Five

Basics

Value: 91874 → 91875 → 91876

Parity: odd

Prime: No

Previous Prime: 91873

Next Prime: 91909

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ⁴ × 7 ²

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 49, 75

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110011011100011

Octal: 263343

Duodecimal: 45203

Hexadecimal: 166e3

Square: 8441015625

Square Root: 303.10889132455355

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 with exactly 3 distinct odd prime divisors {3,5,7}. A147576

Triangle read by rows: T(n, m) = S1(n, m)*5^n-m, where S1 are the signed Stirling numbers of first kind A008275 (n >= 1, 1 <= m <= n). A51150

A partition product of Stirling₂ type [parameter k = -3] with biggest-part statistic (triangle read by rows). A157399

a(n) = gcd(A260443(n), A260443(n+1)). A277198

a(n) = ∏_{d∣n, d>1} prime(1+(d mod 4)). A320114

a(n) = A276086(A328622(n)). A346102

Numbers k whose smallest prime factor is equal to the number of distinct prime factors of k and whose largest prime factor is equal to the number of prime factors of k counted with multiplicity. A392728

a(n) = n²*(2·n + 5). A163683

Odd numbers of the form (m·k)²/(m²-k²) for distinct integers m and k. A259288

a(n) is the conjectured largest number such that both a(n) and a(n) - n are 7-smooth numbers. a(n) can be less than n. Otherwise, if no such number exists then a(n) = 0. A376924