Properties of the Number 90146

Ninety Thousand One Hundred Forty-Six

Basics

Value: 90145 → 90146 → 90147

Parity: even

Prime: No

Previous Prime: 90127

Next Prime: 90149

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 × 47 × 137

Divisors: 1, 2, 7, 14, 47, 94, 137, 274, 329, 658

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000000100010

Octal: 260042

Duodecimal: 44202

Hexadecimal: 16022

Square: 8126301316

Square Root: 300.24323472811176

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

a(n) = 352·2ⁿ + 34. A277988

Total Wiener index of (rooted?) trees on n nodes (see Wagner for precise definition). A122682

Triangle T(n,k) read by rows, giving number of k-member minimal covers of an unlabeled n-set, k=1..n. A55080

Triangle of a(n,k) = number of k-member minimal covers of an n-set (n >= k >= 1). A35348

Number of 3-covers of an unlabeled n-set. A5783

Number of 4-covers of an unlabeled n-set. A5784

Number of 5-covers of an unlabeled n-set. A5785

Number of n-covers of an unlabeled 4-set. A5746

Triangle read by rows, giving T(n,k) = number of k-member minimal ordered covers of a labeled n-set (1 <= k <= n). A49055

Number of minimal ordered covers of a labeled n-set. A49056