Properties of the Number 19359

Nineteen Thousand Three Hundred Fifty-Nine

Basics

Value: 19358 → 19359 → 19360

Parity: odd

Prime: No

Previous Prime: 19333

Next Prime: 19373

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 239

Divisors: 1, 3, 9, 27, 81, 239, 717, 2151, 6453, 19359

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101110011111

Octal: 45637

Duodecimal: B253

Hexadecimal: 4b9f

Square: 374770881

Square Root: 139.13662350366275

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 k such that σ(k) = σ(k-1). A231546

Numbers k with the property that it is possible to write the base 2 expansion of k as concat(a₂,b₂), with a₂>0 and b₂>0 such that, converting a₂ and b₂ to base 10 as a and b, we have σ(a) + σ (b) = σ(k) - k. A258813

Numbers k such that sum of the divisors d of k divides 1 + 2 + ... + k = k(k+1)/2. A76617

Lesser of two consecutive numbers each divisible by a fourth power. A68782

Numbers m such that m = 2*σ(m)/3 - 1. A63906

Odd numbers > 1, not powers of primes, for which A326147(n) is equal to abs(A326146(n)). A326148

A symmetrical triangle sequence: T(n, k) = q^k + q^n-k - qⁿ, with q=3. A176225

The sum of the non-divisors of n (less than n) is a multiple of the sum of the divisors of n. A66860

Expansion of 1/( (1-x)*(1 + x² + x³) ). A77889

a(n) = 40·n² - 1. A158598