Base | Representation |
---|---|
bin | 1101101011100… |
… | …1011111100111 |
3 | 10222222100112010 |
4 | 3122321133213 |
5 | 104142223022 |
6 | 5405525303 |
7 | 1264514022 |
oct | 332713747 |
9 | 128870463 |
10 | 57382887 |
11 | 2a433681 |
12 | 17273833 |
13 | bb71993 |
14 | 789a1b9 |
15 | 508750c |
hex | 36b97e7 |
57382887 has 12 divisors (see below), whose sum is σ = 77687736. Its totient is φ = 37675440.
The previous prime is 57382859. The next prime is 57382901. The reversal of 57382887 is 78828375.
It is not a de Polignac number, because 57382887 - 211 = 57380839 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57382187) 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, 11337 + ... + 15597.
It is an arithmetic number, because the mean of its divisors is an integer number (6473978).
Almost surely, 257382887 is an apocalyptic number.
57382887 is a deficient number, since it is larger than the sum of its proper divisors (20304849).
57382887 is an equidigital number, since it uses as much as digits as its factorization.
57382887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4398 (or 4331 counting only the distinct ones).
The product of its digits is 752640, while the sum is 48.
The square root of 57382887 is about 7575.1493054593. The cubic root of 57382887 is about 385.7099107284.
The spelling of 57382887 in words is "fifty-seven million, three hundred eighty-two thousand, eight hundred eighty-seven".
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