Properties of the Number 90825

Ninety Thousand Eight Hundred Twenty-Five

Basics

Value: 90824 → 90825 → 90826

Parity: odd

Prime: No

Previous Prime: 90823

Next Prime: 90833

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 ² × 7 × 173

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001011001001

Octal: 261311

Duodecimal: 44689

Hexadecimal: 162c9

Square: 8249180625

Square Root: 301.37186331839274

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

Indices of prime Cullen numbers: numbers k such that k·2^k + 1 is prime. A5849

Least k > n such that p(n) divides p(k), where p(k) denotes the k-th partition number (A000041). A79031

Number of nondecreasing sequences of 5 1..n integers with no element dividing the sequence sum. A212872

Numbers k such that (k·2^d + 1)*(d·2^k + 1) is semiprime for some divisor d of k. A382887

Nonprimes n such that (3/2)*(1/n)*(2·n+1)*(3ⁿ+1)*B(2·n) is an integer, where B(k) denotes the k-th Bernoulli number. A90825