Properties of the Number 9807

Nine Thousand Eight Hundred Seven

Basics

Value: 9806 → 9807 → 9808

Parity: odd

Prime: No

Previous Prime: 9803

Next Prime: 9811

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 467

Divisors: 1, 3, 7, 21, 467, 1401, 3269, 9807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001001111

Octal: 23117

Duodecimal: 5813

Hexadecimal: 264f

Square: 96177249

Square Root: 99.03029839397638

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

Interprimes (A024675) which are of the form s·prime, s=21. A75296

T(n,k)=Number of 0..2 arrays of length n+2·k-1 with sum less than 2·k in any length 2k subsequence (=less than 50% duty cycle). A212729

Number of maximal product-free subsets of {1..n}. A326496

a(n) = ∑_i=0..n ∑_j=0..n T(i,j), T given by A026769. A26778

Number of primes of the form 30k + 1 less than 10ⁿ. A91165

Triangle read by rows, T(n,k) = (2^k-1) * T(n-1,k) + T(n-1,k-1). A139382

Positive integers m such that π(m³) = π(j³) + π(k³) for some 0 < j <= k < m. A262409

Starting numbers for which the RATS sequence has eventual period 14. A114615

Number of genus 2 sensed hypermaps with n darts. A214819

T(n, 2·n-3), T given by A027960. A27965