Properties of the Number 90609

Ninety Thousand Six Hundred Nine

Basics

Value: 90608 → 90609 → 90610

Parity: odd

Prime: No

Previous Prime: 90599

Next Prime: 90617

Digit Sum: 24

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 30203

Divisors: 1, 3, 30203, 90609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110000111110001

Octal: 260761

Duodecimal: 44529

Hexadecimal: 161f1

Square: 8209990881

Square Root: 301.01328874320484

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

T(n,k)=Number of arrays of n integers in -k..k with sum zero and equal numbers of elements greater than zero and less than zero. A201811

Number of partitions of n having standard deviation σ > 2. A238661

Least nonnegative number whose n-th arithmetic derivative (A003415) is zero and lower derivatives are nonzero. A189760

Positions of records in A327966. A327967

Palindromes that start with 9. A43044

Palindromic composite numbers starting with a digit 9. A222729

Number of arrays of n integers in -4..4 with sum zero and equal numbers of elements greater than zero and less than zero. A201807

Number of arrays of 7 integers in -n..n with sum zero and equal numbers of elements greater than zero and less than zero. A201815

Number of iterations of "tamed variant of arithmetic derivative", A327965 needed to reach 0 from n, or -1 if zero is never reached. A327966

Primes of the form 6·p - 1 such that p and 6·p - 5 are primes. A90609