Base | Representation |
---|---|
bin | 1101110011000… |
… | …0110101000000 |
3 | 11000220012000120 |
4 | 3130300311000 |
5 | 104303343210 |
6 | 5424220240 |
7 | 1301621046 |
oct | 334606500 |
9 | 130805016 |
10 | 57871680 |
11 | 2a737939 |
12 | 1746a680 |
13 | bcb32c9 |
14 | 7986396 |
15 | 5132270 |
hex | 3730d40 |
57871680 has 112 divisors (see below), whose sum is σ = 191804544. Its totient is φ = 14755840.
The previous prime is 57871651. The next prime is 57871691. The reversal of 57871680 is 8617875.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20770 + ... + 23390.
Almost surely, 257871680 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57871680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95902272).
57871680 is an abundant number, since it is smaller than the sum of its proper divisors (133932864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57871680 is a wasteful number, since it uses less digits than its factorization.
57871680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2664 (or 2654 counting only the distinct ones).
The product of its (nonzero) digits is 94080, while the sum is 42.
The square root of 57871680 is about 7607.3438202831. The cubic root of 57871680 is about 386.8019872516.
The spelling of 57871680 in words is "fifty-seven million, eight hundred seventy-one thousand, six hundred eighty".
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