Properties of the Number 18829

Eighteen Thousand Eight Hundred Twenty-Nine

Basics

Value: 18828 → 18829 → 18830

Parity: odd

Prime: No

Previous Prime: 18803

Next Prime: 18839

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 19 × 991

Divisors: 1, 19, 991, 18829

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100110001101

Octal: 44615

Duodecimal: AA91

Hexadecimal: 498d

Square: 354531241

Square Root: 137.2188033762137

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

Numbers that are the sum of 6 positive 7th powers. A3373

Composite numbers whose divisors (except 1) all contain the digit 9. A62680

Base-10 pseudo-altruistic numbers. A157714

Numbers appearing in the cycles of the "Recurring Digital Invariant Variant" problem described in A151543. A151544

One of the two successive approximations up to 5ⁿ for the 5-adic integer sqrt(-9). This is the 4 (mod 5) case (except for n = 0). A327303

Smallest k such that A073734(k) = n, where A073734 is the GCD of consecutive terms of the EKG sequence A064413. A382222

a(n) = n*(3·n² - 5·n + 3). A226450

a(n) = 5ⁿ mod 2ⁿ. A29757

Composite numbers whose prime factors contain no digits other than 1 and 9. A36309

Numbers n such that μ(n) + μ(n+1) + μ(n+2) + μ(n+3) + μ(n+4) + μ(n+5) + μ(n+6) = 6. A82967