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188385153 = 3115708641
BaseRepresentation
bin10110011101010…
…00011110000001
3111010110221211220
423032220132001
5341211311103
630405425253
74445150565
oct1316503601
9433427756
10188385153
119737a610
125310b229
133004b708
141b03b6a5
1511812c53
hexb3a8781

188385153 has 8 divisors (see below), whose sum is σ = 274014816. Its totient is φ = 114172800.

The previous prime is 188385103. The next prime is 188385179. The reversal of 188385153 is 351583881.

It is a happy number.

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

It is not a de Polignac number, because 188385153 - 210 = 188384129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188385103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2854288 + ... + 2854353.

It is an arithmetic number, because the mean of its divisors is an integer number (34251852).

Almost surely, 2188385153 is an apocalyptic number.

It is an amenable number.

188385153 is a deficient number, since it is larger than the sum of its proper divisors (85629663).

188385153 is a wasteful number, since it uses less digits than its factorization.

188385153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708655.

The product of its digits is 115200, while the sum is 42.

The square root of 188385153 is about 13725.3470994361. The cubic root of 188385153 is about 573.2563719107.

The spelling of 188385153 in words is "one hundred eighty-eight million, three hundred eighty-five thousand, one hundred fifty-three".

Divisors: 1 3 11 33 5708641 17125923 62795051 188385153