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13379551 = 67719763
BaseRepresentation
bin110011000010…
…011111011111
3221011202021221
4303002133133
511411121201
61154434211
7221503303
oct63023737
927152257
1013379551
117609289
124592967
132a05bc3
141ac3d03
1512944a1
hexcc27df

13379551 has 4 divisors (see below), whose sum is σ = 13399992. Its totient is φ = 13359112.

The previous prime is 13379543. The next prime is 13379563. The reversal of 13379551 is 15597331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13379551 - 23 = 13379543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13379581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9205 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (3349998).

Almost surely, 213379551 is an apocalyptic number.

13379551 is a deficient number, since it is larger than the sum of its proper divisors (20441).

13379551 is an equidigital number, since it uses as much as digits as its factorization.

13379551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20440.

The product of its digits is 14175, while the sum is 34.

The square root of 13379551 is about 3657.8068565740. The cubic root of 13379551 is about 237.3998898485.

The spelling of 13379551 in words is "thirteen million, three hundred seventy-nine thousand, five hundred fifty-one".

Divisors: 1 677 19763 13379551