Properties of the Number 30018

Thirty Thousand Eighteen

Basics

Value: 30017 → 30018 → 30019

Parity: even

Prime: No

Previous Prime: 30013

Next Prime: 30029

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5003

Divisors: 1, 2, 3, 6, 5003, 10006, 15009, 30018

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111010101000010

Octal: 72502

Duodecimal: 15456

Hexadecimal: 7542

Square: 901080324

Square Root: 173.25703448922354

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

Indices of (probable) primes in A030221. A299101

Table read by antidiagonals upward: T(n,k) is the number of ways to move a chess queen from (1,1) to (n,k) in the first quadrant using only right, diagonal up-right, and diagonal up-left moves. A334016

Values of n such that n^a-+a are primes, a=5. A155021

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 190", based on the 5-celled von Neumann neighborhood. A270683

Number of 0..n arrays x(0..7) of 8 elements with zero 5th differences. A200275

a(n) is the smallest number k such that A001065(k) = A002110(n), or 0 if no such k exists. A291373

Number of ways to choose a multiset of values whose sum is n from the first floor(1+log₂(n)) rows of Pascal's triangle. A366120

Number of positive integers <= 2ⁿ of form x² + 15 y². A54229

Coefficients in 1/(1+P(x)), where P(x) is the generating function of the primes. A30018

a(n) is the number of odd terms in the n-th column of A334016. A338276