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13313829 = 34437943
BaseRepresentation
bin110010110010…
…011100100101
3221001102010210
4302302130211
511402020304
61153210033
7221110554
oct62623445
927042123
1013313829
117573971
124560919
1329b2009
141aa7d9b
15127ec89
hexcb2725

13313829 has 4 divisors (see below), whose sum is σ = 17751776. Its totient is φ = 8875884.

The previous prime is 13313827. The next prime is 13313843. The reversal of 13313829 is 92831331.

13313829 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92831331 = 330943777.

It is not a de Polignac number, because 13313829 - 21 = 13313827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13313796 and 13313805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313827) 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, 2218969 + ... + 2218974.

It is an arithmetic number, because the mean of its divisors is an integer number (4437944).

Almost surely, 213313829 is an apocalyptic number.

It is an amenable number.

13313829 is a deficient number, since it is larger than the sum of its proper divisors (4437947).

13313829 is an equidigital number, since it uses as much as digits as its factorization.

13313829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437946.

The product of its digits is 3888, while the sum is 30.

The square root of 13313829 is about 3648.8119984455. The cubic root of 13313829 is about 237.0105391528.

The spelling of 13313829 in words is "thirteen million, three hundred thirteen thousand, eight hundred twenty-nine".

Divisors: 1 3 4437943 13313829