Properties of the Number 90055

Ninety Thousand Fifty-Five

Basics

Value: 90054 → 90055 → 90056

Parity: odd

Prime: No

Previous Prime: 90053

Next Prime: 90059

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 7 × 31 × 83

Divisors: 1, 5, 7, 31, 35, 83, 155, 217, 415, 581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111111000111

Octal: 257707

Duodecimal: 44147

Hexadecimal: 15fc7

Square: 8109903025

Square Root: 300.0916526663146

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 all parts of all partitions of n that do not contain 1 as a part. A138880

Triangle T(n,k): number of ways of partitioning the n-element multiset {1,1,2,3,...,n-1} into exactly k nonempty parts, n>=1 and 1<=k<=n. A241500

Number of ways of partitioning the multiset {1,1,2,3,...,n-1} into exactly four nonempty parts. A168584

Sum of parts in all partitions of 2n+1 that do not contain 1 as a part. A182737

Expansion of e.g.f. log(1 + exp(x)*sinh(sqrt(2)*x)/sqrt(2)). A323722

Primorial numbers (first definition): product of first n primes. Sometimes written prime(n)#. A2110

Central Delannoy numbers: a(n) = ∑_k=0..n C(n,k)*C(n+k,k). A1850

4-dimensional pyramidal numbers: a(n) = n²*(n²-1)/12. A2415

Number of nonisomorphic indecomposable self-dual quantum codes on n qubits. A90899

Square array read by upwards antidiagonals: T(m,n) is the number of simple 3-connected triangulations of a closed region in the plane with m+3 given external edges and 3n+m internal edges, m>=0, n>=1. A210664