Base | Representation |
---|---|
bin | 110101001010010011… |
… | …110011100000111000 |
3 | 12110100002111111101112 |
4 | 311022103303200320 |
5 | 1413400301434233 |
6 | 42120041535452 |
7 | 4060345610414 |
oct | 651223634070 |
9 | 173302444345 |
10 | 57081280568 |
11 | 22231992a44 |
12 | b0904a4588 |
13 | 54c8b63b80 |
14 | 2a96da7d44 |
15 | 17413b7048 |
hex | d4a4f3838 |
57081280568 has 32 divisors (see below), whose sum is σ = 115284526560. Its totient is φ = 26339664000.
The previous prime is 57081280559. The next prime is 57081280573. The reversal of 57081280568 is 86508218075.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 461318 + ... + 571818.
It is an arithmetic number, because the mean of its divisors is an integer number (3602641455).
Almost surely, 257081280568 is an apocalyptic number.
It is an amenable number.
57081280568 is an abundant number, since it is smaller than the sum of its proper divisors (58203245992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57081280568 is a wasteful number, since it uses less digits than its factorization.
57081280568 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115487 (or 115483 counting only the distinct ones).
The product of its (nonzero) digits is 1075200, while the sum is 50.
The spelling of 57081280568 in words is "fifty-seven billion, eighty-one million, two hundred eighty thousand, five hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.087 sec. • engine limits •