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7129013 = 43317523
BaseRepresentation
bin11011001100011110110101
3111102012011112
4123030132311
53311112023
6412444405
7114411203
oct33143665
914365145
107129013
11402a151
122479705
131627b68
14d38073
1595c478
hex6cc7b5

7129013 has 8 divisors (see below), whose sum is σ = 7331808. Its totient is φ = 6927984.

The previous prime is 7128997. The next prime is 7129027. The reversal of 7129013 is 3109217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7129013 - 24 = 7128997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7129013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7129093) 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, 13370 + ... + 13892.

It is an arithmetic number, because the mean of its divisors is an integer number (916476).

Almost surely, 27129013 is an apocalyptic number.

It is an amenable number.

7129013 is a deficient number, since it is larger than the sum of its proper divisors (202795).

7129013 is a wasteful number, since it uses less digits than its factorization.

7129013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 7129013 is about 2670.0211609648. The cubic root of 7129013 is about 192.4611761812.

The spelling of 7129013 in words is "seven million, one hundred twenty-nine thousand, thirteen".

Divisors: 1 43 317 523 13631 22489 165791 7129013