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57858342081 = 3191149788289
BaseRepresentation
bin110101111000101000…
…000011110011000001
312112100020200022101120
4311320220003303001
51421443213421311
642325121022453
74115532536031
oct657050036301
9175306608346
1057858342081
11225a0586841
12b268784a29
1355c0b44c97
142b2c2818c1
15178970c706
hexd78a03cc1

57858342081 has 16 divisors (see below), whose sum is σ = 81212673600. Its totient is φ = 36538518528.

The previous prime is 57858342053. The next prime is 57858342187. The reversal of 57858342081 is 18024385875.

It is not a de Polignac number, because 57858342081 - 25 = 57858342049 is a prime.

It is a super-2 number, since 2×578583420812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57858342781) 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, 611185 + ... + 699473.

It is an arithmetic number, because the mean of its divisors is an integer number (5075792100).

Almost surely, 257858342081 is an apocalyptic number.

It is an amenable number.

57858342081 is a deficient number, since it is larger than the sum of its proper divisors (23354331519).

57858342081 is a wasteful number, since it uses less digits than its factorization.

57858342081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99808.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 57858342081 in words is "fifty-seven billion, eight hundred fifty-eight million, three hundred forty-two thousand, eighty-one".

Divisors: 1 3 19 57 11497 34491 88289 218443 264867 655329 1677491 5032473 1015058633 3045175899 19286114027 57858342081