Properties of the Number 91885

Ninety-One Thousand Eight Hundred Eighty-Five

Basics

Value: 91884 → 91885 → 91886

Parity: odd

Prime: No

Previous Prime: 91873

Next Prime: 91909

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 17 × 23 × 47

Divisors: 1, 5, 17, 23, 47, 85, 115, 235, 391, 799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011011101101

Octal: 263355

Duodecimal: 45211

Hexadecimal: 166ed

Square: 8442853225

Square Root: 303.1253865976916

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 3-tuples of nonnegative integers less than p for which 3-argument multinomial coefficients support a Lucas congruence modulo p², where p is the n-th prime. A348885

Centered triangular numbers which are products of four distinct primes. A359845

Triangle read by rows: T(n,k) = number of permutations in symmetric group S_n with an even number of non-fixed point cycles, without k<=n particular fixed points. A374419

Triangle T(n,k) defined by the generating function cosh(sqrt(y)*arcsin(x)) + sqrt(y)*sinh(sqrt(y)*arcsin(x)) - 1 = ∑_n>=1 ∑_k=1..n T(n,k)*y^k *xⁿ/n!. A91885

Number of nondecreasing arrangements of 7 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding four. A189330