Base | Representation |
---|---|
bin | 110101011100100010… |
… | …101110000111000000 |
3 | 12111010102002211011220 |
4 | 311130202232013000 |
5 | 1420012104233410 |
6 | 42210250235040 |
7 | 4101051662040 |
oct | 653442560700 |
9 | 174112084156 |
10 | 57387180480 |
11 | 22379627093 |
12 | b156a25a80 |
13 | 5547349236 |
14 | 2ac5875720 |
15 | 175d18e070 |
hex | d5c8ae1c0 |
57387180480 has 896 divisors, whose sum is σ = 228655595520. Its totient is φ = 11904122880.
The previous prime is 57387180463. The next prime is 57387180533. The reversal of 57387180480 is 8408178375.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 438070015 + ... + 438070145.
Almost surely, 257387180480 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 57387180480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114327797760).
57387180480 is an abundant number, since it is smaller than the sum of its proper divisors (171268415040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57387180480 is a wasteful number, since it uses less digits than its factorization.
57387180480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 297 (or 287 counting only the distinct ones).
The product of its (nonzero) digits is 1505280, while the sum is 51.
The spelling of 57387180480 in words is "fifty-seven billion, three hundred eighty-seven million, one hundred eighty thousand, four hundred eighty".
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