Base | Representation |
---|---|
bin | 10010101000111111… |
… | …110101011010011101 |
3 | 1220122220002020212211 |
4 | 102220333311122131 |
5 | 311442341102300 |
6 | 13110030400421 |
7 | 1305665116555 |
oct | 225077653235 |
9 | 56586066784 |
10 | 20015175325 |
11 | 8541054512 |
12 | 3a67060111 |
13 | 1b6c88c012 |
14 | d7c316165 |
15 | 7c22674ba |
hex | 4a8ff569d |
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".
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