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13833448938 = 232768524941
BaseRepresentation
bin11001110001000100…
…11010110111101010
31022201002002000110200
430320202122313222
5211312330331223
610204402453030
7666543242631
oct147042326752
938632060420
1013833448938
115959691a31
122820964176
1313c5c6665a
14953320518
1555e6d4a43
hex33889adea

13833448938 has 12 divisors (see below), whose sum is σ = 29972472738. Its totient is φ = 4611149640.

The previous prime is 13833448903. The next prime is 13833448961. The reversal of 13833448938 is 83984433831.

13833448938 is a `hidden beast` number, since 138 + 33 + 448 + 9 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10258246089 + 3575202849 = 101283^2 + 59793^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384262453 + ... + 384262488.

Almost surely, 213833448938 is an apocalyptic number.

13833448938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13833448938 is an abundant number, since it is smaller than the sum of its proper divisors (16139023800).

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

13833448938 is a wasteful number, since it uses less digits than its factorization.

13833448938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768524949 (or 768524946 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 13833448938 in words is "thirteen billion, eight hundred thirty-three million, four hundred forty-eight thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 18 768524941 1537049882 2305574823 4611149646 6916724469 13833448938