Properties of the Number 12018

Twelve Thousand Eighteen

Basics

Value: 12017 → 12018 → 12019

Parity: even

Prime: No

Previous Prime: 12011

Next Prime: 12037

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 2003

Divisors: 1, 2, 3, 6, 2003, 4006, 6009, 12018

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111011110010

Octal: 27362

Duodecimal: 6B56

Hexadecimal: 2ef2

Square: 144432324

Square Root: 109.62663909835054

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) is the smallest value of m such that A002378(m), the m-th oblong number, contains exactly n 4's. A48537

Number of different strings of length n obtained from "abcdefgh" by iteratively duplicating any substring. A137748

T(n,k) is the number of (n+1) X (k+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings). A235310

Row sums of A286796. A286797

Number of different strings of length n+6 obtained from "123...n" by iteratively duplicating any substring. A137739

First differences of A037260. A37261

Numbers k such that the k-th triangular number contains only digits {1,2,7}. A119106

Number of weakly unimodal compositions of n in which the greatest part occurs exactly six times. A320317

When squared gives number composed just of the digits 1, 2, 3, 4. A61677

Numbers k such that the number of primes <= k is φ(φ(k)). A63999