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13680893669 = 16384439941
BaseRepresentation
bin11001011110111000…
…11101111011100101
31022022110000101222112
430233130131323211
5211004302044134
610141313010405
7663011451242
oct145734357345
938273011875
1013680893669
1158905649a3
122799853a05
1313a0481671
1493ad6c5c9
155510ed1ce
hex32f71dee5

13680893669 has 8 divisors (see below), whose sum is σ = 13767840672. Its totient is φ = 13593983760.

The previous prime is 13680893663. The next prime is 13680893689. The reversal of 13680893669 is 96639808631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13680893669 is a prime.

It is a super-2 number, since 2×136808936692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680893663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371239 + ... + 1381179.

It is an arithmetic number, because the mean of its divisors is an integer number (1720980084).

Almost surely, 213680893669 is an apocalyptic number.

It is an amenable number.

13680893669 is a deficient number, since it is larger than the sum of its proper divisors (86947003).

13680893669 is an equidigital number, since it uses as much as digits as its factorization.

13680893669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18547.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 13680893669 in words is "thirteen billion, six hundred eighty million, eight hundred ninety-three thousand, six hundred sixty-nine".

Divisors: 1 163 8443 9941 1376209 1620383 83931863 13680893669