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7290013 = 17234231
BaseRepresentation
bin11011110011110010011101
3111201101000111
4123303302131
53331240023
6420130021
7115651453
oct33636235
914641014
107290013
11412a105
122536911
131683223
14d7a9d3
1599000d
hex6f3c9d

7290013 has 4 divisors (see below), whose sum is σ = 7295968. Its totient is φ = 7284060.

The previous prime is 7290001. The next prime is 7290037. The reversal of 7290013 is 3100927.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7290013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7290043) 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, 393 + ... + 3838.

It is an arithmetic number, because the mean of its divisors is an integer number (1823992).

Almost surely, 27290013 is an apocalyptic number.

It is an amenable number.

7290013 is a deficient number, since it is larger than the sum of its proper divisors (5955).

7290013 is a wasteful number, since it uses less digits than its factorization.

7290013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 7290013 is about 2700.0024074063. The cubic root of 7290013 is about 193.8992373606.

The spelling of 7290013 in words is "seven million, two hundred ninety thousand, thirteen".

Divisors: 1 1723 4231 7290013