Base | Representation |
---|---|
bin | 1101110011010… |
… | …0101000110101 |
3 | 11000220222102112 |
4 | 3130310220311 |
5 | 104304343120 |
6 | 5424420405 |
7 | 1302014411 |
oct | 334645065 |
9 | 130828375 |
10 | 57887285 |
11 | 2a748635 |
12 | 17477705 |
13 | bcba441 |
14 | 798bd41 |
15 | 5136bc5 |
hex | 3734a35 |
57887285 has 8 divisors (see below), whose sum is σ = 71159256. Its totient is φ = 45180160.
The previous prime is 57887273. The next prime is 57887293. The reversal of 57887285 is 58278875.
It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 57547396 = 583^2 + 7586^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 57887285 - 216 = 57821749 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140984 + ... + 141393.
It is an arithmetic number, because the mean of its divisors is an integer number (8894907).
Almost surely, 257887285 is an apocalyptic number.
It is an amenable number.
57887285 is a deficient number, since it is larger than the sum of its proper divisors (13271971).
57887285 is a wasteful number, since it uses less digits than its factorization.
57887285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 282423.
The product of its digits is 1254400, while the sum is 50.
The square root of 57887285 is about 7608.3694048068. The cubic root of 57887285 is about 386.8367509596.
The spelling of 57887285 in words is "fifty-seven million, eight hundred eighty-seven thousand, two hundred eighty-five".
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