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57886000642 = 2118901243421
BaseRepresentation
bin110101111010010001…
…100100011000000010
312112102011201111210201
4311322101210120002
51422022304010032
642331545515414
74116316613161
oct657221443002
9175364644721
1057886000642
1122605158058
12b275aa2b6a
1355c67aa2b2
142b31c013d8
15178bd728e7
hexd7a464602

57886000642 has 8 divisors (see below), whose sum is σ = 86830087932. Its totient is φ = 28942638000.

The previous prime is 57886000631. The next prime is 57886000717. The reversal of 57886000642 is 24600068875.

It can be written as a sum of positive squares in 2 ways, for example, as 56435228721 + 1450771921 = 237561^2 + 38089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57886000592 and 57886000601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116092 + ... + 359512.

Almost surely, 257886000642 is an apocalyptic number.

57886000642 is a deficient number, since it is larger than the sum of its proper divisors (28944087290).

57886000642 is a wasteful number, since it uses less digits than its factorization.

57886000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362324.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 57886000642 in words is "fifty-seven billion, eight hundred eighty-six million, six hundred forty-two", and thus it is an aban number.

Divisors: 1 2 118901 237802 243421 486842 28943000321 57886000642