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13670823668 = 2219717348761
BaseRepresentation
bin11001011101101100…
…00011011011110100
31022021202001210112112
430232312003123310
5210444212324133
610140313110152
7662530040525
oct145666033364
938252053475
1013670823668
115885907187
1227963b8358
13139b366c98
149398aa84c
155502ae648
hex32ed836f4

13670823668 has 12 divisors (see below), whose sum is σ = 24045384132. Its totient is φ = 6800713920.

The previous prime is 13670823667. The next prime is 13670823707. The reversal of 13670823668 is 86632807631.

It can be written as a sum of positive squares in 2 ways, for example, as 12067461904 + 1603361764 = 109852^2 + 40042^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13670823667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8673593 + ... + 8675168.

It is an arithmetic number, because the mean of its divisors is an integer number (2003782011).

Almost surely, 213670823668 is an apocalyptic number.

It is an amenable number.

13670823668 is a deficient number, since it is larger than the sum of its proper divisors (10374560464).

13670823668 is a wasteful number, since it uses less digits than its factorization.

13670823668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17348962 (or 17348960 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 13670823668 in words is "thirteen billion, six hundred seventy million, eight hundred twenty-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 197 394 788 17348761 34697522 69395044 3417705917 6835411834 13670823668