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14281918 = 271020137
BaseRepresentation
bin110110011110…
…110010111110
3222212121002221
4312132302332
512124010133
61230035554
7232252150
oct66366276
928777087
1014281918
118075242
124948bba
132c60851
141c7aad0
1513c1a2d
hexd9ecbe

14281918 has 8 divisors (see below), whose sum is σ = 24483312. Its totient is φ = 6120816.

The previous prime is 14281913. The next prime is 14281931. The reversal of 14281918 is 81918241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14281913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510055 + ... + 510082.

It is an arithmetic number, because the mean of its divisors is an integer number (3060414).

Almost surely, 214281918 is an apocalyptic number.

14281918 is a deficient number, since it is larger than the sum of its proper divisors (10201394).

14281918 is a wasteful number, since it uses less digits than its factorization.

14281918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020146.

The product of its digits is 4608, while the sum is 34.

The square root of 14281918 is about 3779.1424953288. The cubic root of 14281918 is about 242.6212551213.

The spelling of 14281918 in words is "fourteen million, two hundred eighty-one thousand, nine hundred eighteen".

Divisors: 1 2 7 14 1020137 2040274 7140959 14281918