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20015175325 = 522447327179
BaseRepresentation
bin10010101000111111…
…110101011010011101
31220122220002020212211
4102220333311122131
5311442341102300
613110030400421
71305665116555
oct225077653235
956586066784
1020015175325
118541054512
123a67060111
131b6c88c012
14d7c316165
157c22674ba
hex4a8ff569d

20015175325 has 12 divisors (see below), whose sum is σ = 24829035840. Its totient is φ = 16005547760.

The previous prime is 20015175307. The next prime is 20015175329. The reversal of 20015175325 is 52357151002.

It is a de Polignac number, because none of the positive numbers 2k-20015175325 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015175329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102415 + ... + 224764.

It is an arithmetic number, because the mean of its divisors is an integer number (2069086320).

Almost surely, 220015175325 is an apocalyptic number.

20015175325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20015175325 is a deficient number, since it is larger than the sum of its proper divisors (4813860515).

20015175325 is a wasteful number, since it uses less digits than its factorization.

20015175325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329636 (or 329631 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The spelling of 20015175325 in words is "twenty billion, fifteen million, one hundred seventy-five thousand, three hundred twenty-five".

Divisors: 1 5 25 2447 12235 61175 327179 1635895 8179475 800607013 4003035065 20015175325