Base | Representation |
---|---|
bin | 1101100111000… |
… | …1101101110111 |
3 | 10222102102020020 |
4 | 3121301231313 |
5 | 104103321022 |
6 | 5355340223 |
7 | 1262150622 |
oct | 331615567 |
9 | 128372206 |
10 | 57088887 |
11 | 2a2527a9 |
12 | 17151673 |
13 | ba9ac0b |
14 | 7820db9 |
15 | 502a35c |
hex | 3671b77 |
57088887 has 16 divisors (see below), whose sum is σ = 79322112. Its totient is φ = 36480960.
The previous prime is 57088861. The next prime is 57088919. The reversal of 57088887 is 78888075.
It is a happy number.
It is not a de Polignac number, because 57088887 - 211 = 57086839 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57088807) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7083 + ... + 12819.
It is an arithmetic number, because the mean of its divisors is an integer number (4957632).
Almost surely, 257088887 is an apocalyptic number.
57088887 is a deficient number, since it is larger than the sum of its proper divisors (22233225).
57088887 is a wasteful number, since it uses less digits than its factorization.
57088887 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5878.
The product of its (nonzero) digits is 1003520, while the sum is 51.
The square root of 57088887 is about 7555.7188274843. The cubic root of 57088887 is about 385.0500570209.
It can be divided in two parts, 57088 and 887, that added together give a palindrome (57975).
The spelling of 57088887 in words is "fifty-seven million, eighty-eight thousand, eight hundred eighty-seven".
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