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7066913 = 71009559
BaseRepresentation
bin11010111101010100100001
3111022000222112
4122331110201
53302120123
6411245105
7114032150
oct32752441
914260875
107066913
113a97527
122449795
131605809
14d1d597
15948d78
hex6bd521

7066913 has 4 divisors (see below), whose sum is σ = 8076480. Its totient is φ = 6057348.

The previous prime is 7066909. The next prime is 7066931. The reversal of 7066913 is 3196607.

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.

It is a cyclic number.

It is not a de Polignac number, because 7066913 - 22 = 7066909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7066913.

It is not an unprimeable number, because it can be changed into a prime (7066973) 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, 504773 + ... + 504786.

It is an arithmetic number, because the mean of its divisors is an integer number (2019120).

Almost surely, 27066913 is an apocalyptic number.

It is an amenable number.

7066913 is a deficient number, since it is larger than the sum of its proper divisors (1009567).

7066913 is a wasteful number, since it uses less digits than its factorization.

7066913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009566.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 7066913 is about 2658.3666037625. The cubic root of 7066913 is about 191.9007100196.

The spelling of 7066913 in words is "seven million, sixty-six thousand, nine hundred thirteen".

Divisors: 1 7 1009559 7066913