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13159829 = 14988321
BaseRepresentation
bin110010001100…
…110110010101
3220202120220002
4302030312111
511332103304
61150021045
7216566564
oct62146625
926676802
1013159829
1174791a1
1244a7785
132959ba7
141a67bdb
15124e31e
hexc8cd95

13159829 has 4 divisors (see below), whose sum is σ = 13248300. Its totient is φ = 13071360.

The previous prime is 13159793. The next prime is 13159831. The reversal of 13159829 is 92895131.

13159829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7279204 + 5880625 = 2698^2 + 2425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13159829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13159792 and 13159801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13159879) 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, 44012 + ... + 44309.

It is an arithmetic number, because the mean of its divisors is an integer number (3312075).

Almost surely, 213159829 is an apocalyptic number.

It is an amenable number.

13159829 is a deficient number, since it is larger than the sum of its proper divisors (88471).

13159829 is an equidigital number, since it uses as much as digits as its factorization.

13159829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88470.

The product of its digits is 19440, while the sum is 38.

The square root of 13159829 is about 3627.6478605289. The cubic root of 13159829 is about 236.0931656006.

The spelling of 13159829 in words is "thirteen million, one hundred fifty-nine thousand, eight hundred twenty-nine".

Divisors: 1 149 88321 13159829