Properties of the Number 13699

Thirteen Thousand Six Hundred Ninety-Nine

Basics

Value: 13698 → 13699 → 13700

Parity: odd

Prime: No

Previous Prime: 13697

Next Prime: 13709

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 19 × 103

Divisors: 1, 7, 19, 103, 133, 721, 1957, 13699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010110000011

Octal: 32603

Duodecimal: 7B17

Hexadecimal: 3583

Square: 187662601

Square Root: 117.04272724095249

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) = n*(a(n-1) + 1), a(0) = 0. A7526

Stella octangula numbers: a(n) = n*(2·n² - 1). A7588

Triangle T(n,k) read by rows, where e.g.f. for T(n,k) is exp((1+y)*x)/(1-x). A73107

Multiply by 1, add 1, multiply by 2, add 2, etc., starting with 0. A82458

Number of integer compositions of n whose maximal runs of k's all have length > k, for all k. A389511

Irregular array read by rows. a(n) is the largest element in the primitive Collatz-like 3x-k cycle associated with A226623(n). A226624

Magic sums of 3 X 3 semimagic squares composed of positive squares. A269061

Triangle read by rows, T(n,k) = ∑_j=0..n C(n,j)*L(j,k), L the unsigned Lah numbers A271703, for n>=0 and 0<=k<=n. A271705

Products of three distinct primes of the form 6·k + 1. A154729

Expansion of e.g.f. ∏_k>=1 1/(1 - x^k)^σ(k/k), where σ(k) is the sum of the divisors of k. A305127