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18295268 = 2222919973
BaseRepresentation
bin100010111001…
…0100111100100
31021102111101112
41011302213210
514140422033
61452044152
7311335655
oct105624744
937374345
1018295268
11a366562
126163658
133a37504
14260352c
151915c48
hex11729e4

18295268 has 12 divisors (see below), whose sum is σ = 32158140. Its totient is φ = 9107232.

The previous prime is 18295261. The next prime is 18295273. The reversal of 18295268 is 86259281.

It can be written as a sum of positive squares in 2 ways, for example, as 12687844 + 5607424 = 3562^2 + 2368^2 .

It is not an unprimeable number, because it can be changed into a prime (18295261) 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, 9071 + ... + 10902.

It is an arithmetic number, because the mean of its divisors is an integer number (2679845).

Almost surely, 218295268 is an apocalyptic number.

It is an amenable number.

18295268 is a deficient number, since it is larger than the sum of its proper divisors (13862872).

18295268 is a wasteful number, since it uses less digits than its factorization.

18295268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20206 (or 20204 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 18295268 is about 4277.2968099023. The cubic root of 18295268 is about 263.4993764890.

The spelling of 18295268 in words is "eighteen million, two hundred ninety-five thousand, two hundred sixty-eight".

Divisors: 1 2 4 229 458 916 19973 39946 79892 4573817 9147634 18295268