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188974113 = 3199731543
BaseRepresentation
bin10110100001110…
…00010000100001
3111011120212202020
423100320100201
5341334132423
630430212053
74453152636
oct1320702041
9434525666
10188974113
1197742059
1253354029
13301c6803
141b15218d
15118cc4e3
hexb438421

188974113 has 8 divisors (see below), whose sum is σ = 252099648. Its totient is φ = 125915664.

The previous prime is 188974111. The next prime is 188974129. The reversal of 188974113 is 311479881.

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

It is not a de Polignac number, because 188974113 - 21 = 188974111 is a prime.

It is a super-2 number, since 2×1889741132 = 71422430768273538, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188974111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9781 + ... + 21762.

It is an arithmetic number, because the mean of its divisors is an integer number (31512456).

Almost surely, 2188974113 is an apocalyptic number.

It is an amenable number.

188974113 is a deficient number, since it is larger than the sum of its proper divisors (63125535).

188974113 is a wasteful number, since it uses less digits than its factorization.

188974113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33543.

The product of its digits is 48384, while the sum is 42.

The square root of 188974113 is about 13746.7855515389. The cubic root of 188974113 is about 573.8531525510.

The spelling of 188974113 in words is "one hundred eighty-eight million, nine hundred seventy-four thousand, one hundred thirteen".

Divisors: 1 3 1997 5991 31543 94629 62991371 188974113