Properties of the Number 18417

Eighteen Thousand Four Hundred Seventeen

Basics

Value: 18416 → 18417 → 18418

Parity: odd

Prime: No

Previous Prime: 18413

Next Prime: 18427

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 877

Divisors: 1, 3, 7, 21, 877, 2631, 6139, 18417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011111110001

Octal: 43761

Duodecimal: A7A9

Hexadecimal: 47f1

Square: 339185889

Square Root: 135.70924802680176

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 rooted identity trees with 3-colored leaves. A38076

Average of three successive primes squared, (prime(n)²+prime(n+1)²+prime(n+2)²)/3, n>=3. A75893

a(n) is the number of regions formed by n-secting the angles of an octagon. A335769

a(1) = 2; a(n) = 9·2^n-2 - n - 2, n>1. A54127

Exponential transform of Pascal's triangle A007318. A55883

Axially symmetric n-celled polyominoes with 1 hole. A57420

Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 90. A31588

Number of partitions p of n such that #m(1) = #m(2), where #m(i) = number of numbers in p that have multiplicity i. A241518

a(n) = smallest prime p such that p is the home prime (cf. A037274) of exactly n natural numbers. A118756

Divisors of 369. A18417