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13002147 = 333971213
BaseRepresentation
bin110001100110…
…010110100011
3220110120121000
4301212112203
511312032042
61142403043
7215342064
oct61462643
926416530
1013002147
117380784
124430483
1329031a2
141a2656b
15121c74c
hexc665a3

13002147 has 16 divisors (see below), whose sum is σ = 19326880. Its totient is φ = 8639136.

The previous prime is 13002139. The next prime is 13002149. The reversal of 13002147 is 74120031.

13002147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13002147 - 23 = 13002139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13002149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10113 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (1207930).

Almost surely, 213002147 is an apocalyptic number.

13002147 is a deficient number, since it is larger than the sum of its proper divisors (6324733).

13002147 is a wasteful number, since it uses less digits than its factorization.

13002147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 13002147 is about 3605.8489985023. The cubic root of 13002147 is about 235.1464124584.

Adding to 13002147 its reverse (74120031), we get a palindrome (87122178).

The spelling of 13002147 in words is "thirteen million, two thousand, one hundred forty-seven".

Divisors: 1 3 9 27 397 1191 1213 3573 3639 10719 10917 32751 481561 1444683 4334049 13002147