Base | Representation |
---|---|
bin | 110101100100110001… |
… | …100111011000000000 |
3 | 12111111001000011100210 |
4 | 311210301213120000 |
5 | 1420302434142114 |
6 | 42232102514120 |
7 | 4104350002005 |
oct | 654461473000 |
9 | 174431004323 |
10 | 57525302784 |
11 | 2243a596454 |
12 | b195135940 |
13 | 5569b49a01 |
14 | 2ad9d4b8ac |
15 | 176a374259 |
hex | d64c67600 |
57525302784 has 80 divisors (see below), whose sum is σ = 154191863232. Its totient is φ = 19057379328.
The previous prime is 57525302767. The next prime is 57525302789. The reversal of 57525302784 is 48720352575.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57525302789) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135487 + ... + 365249.
Almost surely, 257525302784 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 57525302784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77095931616).
57525302784 is an abundant number, since it is smaller than the sum of its proper divisors (96666560448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57525302784 is a wasteful number, since it uses less digits than its factorization.
57525302784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 229947 (or 229931 counting only the distinct ones).
The product of its (nonzero) digits is 2352000, while the sum is 48.
The spelling of 57525302784 in words is "fifty-seven billion, five hundred twenty-five million, three hundred two thousand, seven hundred eighty-four".
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