Base | Representation |
---|---|
bin | 110101011110111100… |
… | …000010000000000011 |
3 | 12111020012201122211011 |
4 | 311132330002000003 |
5 | 1420102401314422 |
6 | 42214243501351 |
7 | 4102050406441 |
oct | 653674020003 |
9 | 174205648734 |
10 | 57427369987 |
11 | 2239a287059 |
12 | b168387857 |
13 | 555277b100 |
14 | 2acad37b91 |
15 | 176197c077 |
hex | d5ef02003 |
57427369987 has 12 divisors (see below), whose sum is σ = 63060520464. Its totient is φ = 52263251040.
The previous prime is 57427369969. The next prime is 57427370041. The reversal of 57427369987 is 78996372475.
It is not a de Polignac number, because 57427369987 - 27 = 57427369859 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57427369957) 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, 2381008 + ... + 2405005.
It is an arithmetic number, because the mean of its divisors is an integer number (5255043372).
Almost surely, 257427369987 is an apocalyptic number.
57427369987 is a deficient number, since it is larger than the sum of its proper divisors (5633150477).
57427369987 is a wasteful number, since it uses less digits than its factorization.
57427369987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4786110 (or 4786097 counting only the distinct ones).
The product of its digits is 160030080, while the sum is 67.
The spelling of 57427369987 in words is "fifty-seven billion, four hundred twenty-seven million, three hundred sixty-nine thousand, nine hundred eighty-seven".
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