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14531418 = 2321179929
BaseRepresentation
bin110111011011…
…101101011010
31000100021100200
4313123231122
512210001133
61235243030
7234341436
oct67335532
930307320
1014531418
118225740
124a49476
13301a295
141d039c6
151420913
hexddbb5a

14531418 has 48 divisors (see below), whose sum is σ = 34819200. Its totient is φ = 4343040.

The previous prime is 14531401. The next prime is 14531443. The reversal of 14531418 is 81413541.

It is a happy number.

It is a super-2 number, since 2×145314182 = 422324218181448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14531391 and 14531400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15178 + ... + 16106.

It is an arithmetic number, because the mean of its divisors is an integer number (725400).

Almost surely, 214531418 is an apocalyptic number.

14531418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14531418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17409600).

14531418 is an abundant number, since it is smaller than the sum of its proper divisors (20287782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14531418 is a wasteful number, since it uses less digits than its factorization.

14531418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1024 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 14531418 is about 3812.0097061786. The cubic root of 14531418 is about 244.0259423281.

Adding to 14531418 its reverse (81413541), we get a palindrome (95944959).

The spelling of 14531418 in words is "fourteen million, five hundred thirty-one thousand, four hundred eighteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 79 99 158 198 237 474 711 869 929 1422 1738 1858 2607 2787 5214 5574 7821 8361 10219 15642 16722 20438 30657 61314 73391 91971 146782 183942 220173 440346 660519 807301 1321038 1614602 2421903 4843806 7265709 14531418