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3888869894770 = 257220353389941
BaseRepresentation
bin111000100101110010101…
…101010110101001110010
3111202202212000210102121211
4320211302231112221302
51002203401143113040
612134304442110334
7550650551462200
oct70456255265162
914682760712554
103888869894770
11126a2957447a3
125298327ab3aa
1322294643a013
14d6318022070
156b259a818ea
hex38972b56a72

3888869894770 has 48 divisors (see below), whose sum is σ = 8143238334168. Its totient is φ = 1333257891840.

The previous prime is 3888869894743. The next prime is 3888869894821. The reversal of 3888869894770 is 774989688883.

It can be written as a sum of positive squares in 4 ways, for example, as 1686593118721 + 2202276776049 = 1298689^2 + 1484007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9778000 + ... + 10167940.

Almost surely, 23888869894770 is an apocalyptic number.

3888869894770 is an abundant number, since it is smaller than the sum of its proper divisors (4254368439398).

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

3888869894770 is a wasteful number, since it uses less digits than its factorization.

3888869894770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410315 (or 410308 counting only the distinct ones).

The product of its (nonzero) digits is 9364045824, while the sum is 85.

The spelling of 3888869894770 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixty-nine million, eight hundred ninety-four thousand, seven hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 20353 40706 101765 142471 203530 284942 389941 712355 779882 997297 1424710 1949705 1994594 2729587 3899410 4986485 5459174 9972970 13647935 19107109 27295870 38214218 95535545 191071090 7936469173 15872938346 39682345865 55555284211 79364691730 111110568422 277776421055 388886989477 555552842110 777773978954 1944434947385 3888869894770