Base | Representation |
---|---|
bin | 110101010001100011… |
… | …100110001010001111 |
3 | 12110122120021101221220 |
4 | 311101203212022033 |
5 | 1414122413020222 |
6 | 42140103454423 |
7 | 4063353202410 |
oct | 652143461217 |
9 | 173576241856 |
10 | 57202860687 |
11 | 22294583985 |
12 | b105157413 |
13 | 55180c207b |
14 | 2aa91b5807 |
15 | 174bdd0b5c |
hex | d518e628f |
57202860687 has 16 divisors (see below), whose sum is σ = 87550263552. Its totient is φ = 32543349120.
The previous prime is 57202860629. The next prime is 57202860697. The reversal of 57202860687 is 78606820275.
It is a happy number.
57202860687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 57202860687 - 26 = 57202860623 is a prime.
It is a super-2 number, since 2×572028606872 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57202860697) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995114 + ... + 6004647.
It is an arithmetic number, because the mean of its divisors is an integer number (5471891472).
Almost surely, 257202860687 is an apocalyptic number.
57202860687 is a deficient number, since it is larger than the sum of its proper divisors (30347402865).
57202860687 is a wasteful number, since it uses less digits than its factorization.
57202860687 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11999998.
The product of its (nonzero) digits is 2257920, while the sum is 51.
The spelling of 57202860687 in words is "fifty-seven billion, two hundred two million, eight hundred sixty thousand, six hundred eighty-seven".
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