Properties of the Number 91355

Ninety-One Thousand Three Hundred Fifty-Five

Basics

Value: 91354 → 91355 → 91356

Parity: odd

Prime: No

Previous Prime: 91331

Next Prime: 91367

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 11 ² × 151

Divisors: 1, 5, 11, 55, 121, 151, 605, 755, 1661, 8305

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010011011011

Octal: 262333

Duodecimal: 44A4B

Hexadecimal: 164db

Square: 8345736025

Square Root: 302.2498966087499

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 that enter a cycle of greater length than that for any k < n in the iteration sequence s(0)=n, s(k+1) = s(k) + (-1)^k*d(s(k)), where d(n) is the number of divisors of n (A000005). A285004

a(n) is the least number that enters a cycle of length 2n in the iteration sequence s(0)=n, s(k+1) = s(k) + (-1)^k*d(s(k)), where d(n) is the number of divisors of n (A000005). A288070

Numbers k such that k!4 + 2¹⁰ is prime, where k!4 = k!!!! is the quadruple factorial number (A007662). A291351

Triangle read by rows: T(n,k) = number of planar partitions of n with k rows. A91355