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7061993 = 29243517
BaseRepresentation
bin11010111100000111101001
3111021210020022
4122330013221
53301440433
6411210225
7114011621
oct32740751
914253208
107061993
113a93864
122446975
1316034c3
14d1b881
15947698
hex6bc1e9

7061993 has 4 divisors (see below), whose sum is σ = 7305540. Its totient is φ = 6818448.

The previous prime is 7061983. The next prime is 7062007. The reversal of 7061993 is 3991607.

7061993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1364224 + 5697769 = 1168^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 7061993 - 28 = 7061737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7061983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121730 + ... + 121787.

It is an arithmetic number, because the mean of its divisors is an integer number (1826385).

Almost surely, 27061993 is an apocalyptic number.

It is an amenable number.

7061993 is a deficient number, since it is larger than the sum of its proper divisors (243547).

7061993 is a wasteful number, since it uses less digits than its factorization.

7061993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243546.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 7061993 is about 2657.4410623756. The cubic root of 7061993 is about 191.8561657853.

The spelling of 7061993 in words is "seven million, sixty-one thousand, nine hundred ninety-three".

Divisors: 1 29 243517 7061993