Base | Representation |
---|---|
bin | 110101011100101001… |
… | …101000011001010100 |
3 | 12111010112111212020100 |
4 | 311130221220121110 |
5 | 1420013040221314 |
6 | 42210353134100 |
7 | 4101103245504 |
oct | 653451503124 |
9 | 174115455210 |
10 | 57388992084 |
11 | 2237a654186 |
12 | b15755a330 |
13 | 55478319a8 |
14 | 2ac5bc7a04 |
15 | 175d3eac09 |
hex | d5ca68654 |
57388992084 has 18 divisors (see below), whose sum is σ = 145066618970. Its totient is φ = 19129664016.
The previous prime is 57388992083. The next prime is 57388992091. The reversal of 57388992084 is 48029988375.
It can be written as a sum of positive squares in only one way, i.e., 55644092100 + 1744899984 = 235890^2 + 41772^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57388992083) 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 5 ways as a sum of consecutive naturals, for example, 797069299 + ... + 797069370.
Almost surely, 257388992084 is an apocalyptic number.
It is an amenable number.
57388992084 is an abundant number, since it is smaller than the sum of its proper divisors (87677626886).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57388992084 is a wasteful number, since it uses less digits than its factorization.
57388992084 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1594138679 (or 1594138674 counting only the distinct ones).
The product of its (nonzero) digits is 34836480, while the sum is 63.
The spelling of 57388992084 in words is "fifty-seven billion, three hundred eighty-eight million, nine hundred ninety-two thousand, eighty-four".
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