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13729079 = 713150869
BaseRepresentation
bin110100010111…
…110100110111
3221211111202102
4310113310313
512003312304
61210132315
7224460320
oct64276467
927744672
1013729079
117827951
12472109b
132ac9020
141b75447
151312d1e
hexd17d37

13729079 has 8 divisors (see below), whose sum is σ = 16897440. Its totient is φ = 10862496.

The previous prime is 13729061. The next prime is 13729099. The reversal of 13729079 is 97092731.

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

It is a cyclic number.

It is not a de Polignac number, because 13729079 - 28 = 13728823 is a prime.

It is a super-2 number, since 2×137290792 = 376975220376482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13729019) 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, 75344 + ... + 75525.

It is an arithmetic number, because the mean of its divisors is an integer number (2112180).

Almost surely, 213729079 is an apocalyptic number.

13729079 is a deficient number, since it is larger than the sum of its proper divisors (3168361).

13729079 is a wasteful number, since it uses less digits than its factorization.

13729079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150889.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 13729079 is about 3705.2771826140. The cubic root of 13729079 is about 239.4494265770.

The spelling of 13729079 in words is "thirteen million, seven hundred twenty-nine thousand, seventy-nine".

Divisors: 1 7 13 91 150869 1056083 1961297 13729079