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12315329 = 134322031
BaseRepresentation
bin101110111110…
…101011000001
3212011200110022
4232332223001
511123042304
61115543225
7206451515
oct56765301
925150408
1012315329
116a51764
12415ab15
1327226a0
1418c8145
151133ebe
hexbbeac1

12315329 has 8 divisors (see below), whose sum is σ = 13571712. Its totient is φ = 11103120.

The previous prime is 12315323. The next prime is 12315349. The reversal of 12315329 is 92351321.

12315329 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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-12315329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12315298 and 12315307.

It is not an unprimeable number, because it can be changed into a prime (12315323) 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, 10457 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 212315329 is an apocalyptic number.

It is an amenable number.

12315329 is a deficient number, since it is larger than the sum of its proper divisors (1256383).

12315329 is a wasteful number, since it uses less digits than its factorization.

12315329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22087.

The product of its digits is 1620, while the sum is 26.

The square root of 12315329 is about 3509.3203045604. The cubic root of 12315329 is about 230.9308776650.

The spelling of 12315329 in words is "twelve million, three hundred fifteen thousand, three hundred twenty-nine".

Divisors: 1 13 43 559 22031 286403 947333 12315329