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13660951748 = 2210133814237
BaseRepresentation
bin11001011100100000…
…11001010011000100
31022021001111020210212
430232100121103010
5210434200423443
610135321334552
7662350113443
oct145620312304
938231436725
1013660951748
115880284274
122793037458
1313992bb802
1493845ad5a
1554e4ae618
hex32e4194c4

13660951748 has 12 divisors (see below), whose sum is σ = 24143365932. Its totient is φ = 6762847200.

The previous prime is 13660951673. The next prime is 13660951751. The reversal of 13660951748 is 84715906631.

It can be written as a sum of positive squares in 2 ways, for example, as 12994176064 + 666775684 = 113992^2 + 25822^2 .

It is a super-2 number, since 2×136609517482 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13660951696 and 13660951705.

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, 16906715 + ... + 16907522.

It is an arithmetic number, because the mean of its divisors is an integer number (2011947161).

Almost surely, 213660951748 is an apocalyptic number.

It is an amenable number.

13660951748 is a deficient number, since it is larger than the sum of its proper divisors (10482414184).

13660951748 is a wasteful number, since it uses less digits than its factorization.

13660951748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33814342 (or 33814340 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 13660951748 in words is "thirteen billion, six hundred sixty million, nine hundred fifty-one thousand, seven hundred forty-eight".

Divisors: 1 2 4 101 202 404 33814237 67628474 135256948 3415237937 6830475874 13660951748