Properties of the Number 90307

Ninety Thousand Three Hundred Seven

Basics

Value: 90306 → 90307 → 90308

Parity: odd

Prime: No

Previous Prime: 90289

Next Prime: 90313

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 ² × 19 × 97

Divisors: 1, 7, 19, 49, 97, 133, 679, 931, 1843, 4753

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000011000011

Octal: 260303

Duodecimal: 44317

Hexadecimal: 160c3

Square: 8155354249

Square Root: 300.5112310713195

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 odd semiprimes less than 2ⁿ. A362042

a(n) = 18·a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 18. A90307

Number of j (0 <= j <= n) such that the central binomial coefficient C(n,floor(n/2)) = A001405(n) is divisible by C(n,j). A80383

a(n) is the smallest integer such that A080383(a(n)) = n. A80393