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Properties of the Number 19143

Nineteen Thousand One Hundred Forty-Three

Basics

Value: 19142 → 19143 → 19144

Parity: odd

Prime: No

Previous Prime: 19141

Next Prime: 19157

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 3 × 709

Divisors: 1, 3, 9, 27, 709, 2127, 6381, 19143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101011000111

Octal: 45307

Duodecimal: B0B3

Hexadecimal: 4ac7

Square: 366454449

Square Root: 138.35823069120246

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 twice-partitions of type (Q,P,Q) and weight n. A279790
Numbers k such that k, k+1, k+2 and k+3 have the same number of divisors. A6601
a(n) is the smallest integer such that the sum of any three ordered terms a(k), k <= n, is unique. A51912
Numbers k such that k and k+1 are both of the form p·q3 where p and q are distinct primes. A215173
Reverse or triple: if reverse(a(n)) > a(n), a(n+1) = reverse(a(n)), else a(n+1) = 3·a(n). A42938
The added number in A370193 which results in the stack having a new record height. A372612
Numbers n such that prime(n) and φ(n) have the same decimal digits. A243462
a(n) is the least positive integer k such that k! has exactly n infinitary divisors that are factorials, or -1 if no such number exists. A375638
Number of partitions of n with equal number of parts congruent to each of 2 and 4 (mod 5). A35560
Numbers ending with '3' that are the difference of two positive cubes. A38858