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57186210140 = 2254795969333
BaseRepresentation
bin110101010000100100…
…000101000101011100
312110121101221110200222
4311100210011011130
51414104132211030
642134310540512
74063061523503
oct652044050534
9173541843628
1057186210140
11222861410a4
12b0bb667738
135514812387
142aa6cbd83a
15174a6e23e5
hexd5090515c

57186210140 has 24 divisors (see below), whose sum is σ = 120341773440. Its totient is φ = 22826725568.

The previous prime is 57186210077. The next prime is 57186210157. The reversal of 57186210140 is 4101268175.

It is a self number, because there is not a number n which added to its sum of digits gives 57186210140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2975087 + ... + 2994246.

It is an arithmetic number, because the mean of its divisors is an integer number (5014240560).

Almost surely, 257186210140 is an apocalyptic number.

It is an amenable number.

57186210140 is an abundant number, since it is smaller than the sum of its proper divisors (63155563300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57186210140 is a wasteful number, since it uses less digits than its factorization.

57186210140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969821 (or 5969819 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 57186210140 in words is "fifty-seven billion, one hundred eighty-six million, two hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 479 958 1916 2395 4790 9580 5969333 11938666 23877332 29846665 59693330 119386660 2859310507 5718621014 11437242028 14296552535 28593105070 57186210140