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195125147 = 727875021
BaseRepresentation
bin10111010000101…
…01111110011011
3111121011101101022
423220111332123
5344423001042
631210113055
74556351660
oct1350257633
9447141338
10195125147
11a0163458
125541b78b
133156b489
141bcb3a67
15121e4cd2
hexba15f9b

195125147 has 4 divisors (see below), whose sum is σ = 223000176. Its totient is φ = 167250120.

The previous prime is 195125083. The next prime is 195125159. The reversal of 195125147 is 741521591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195125147 - 26 = 195125083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195125347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13937504 + ... + 13937517.

It is an arithmetic number, because the mean of its divisors is an integer number (55750044).

Almost surely, 2195125147 is an apocalyptic number.

195125147 is a deficient number, since it is larger than the sum of its proper divisors (27875029).

195125147 is an equidigital number, since it uses as much as digits as its factorization.

195125147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27875028.

The product of its digits is 12600, while the sum is 35.

The square root of 195125147 is about 13968.7203064561. The cubic root of 195125147 is about 580.0130268576.

The spelling of 195125147 in words is "one hundred ninety-five million, one hundred twenty-five thousand, one hundred forty-seven".

Divisors: 1 7 27875021 195125147