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663164311 = 727912193
BaseRepresentation
bin100111100001110…
…001010110010111
31201012212020102011
4213201301112113
52324232224221
6145445525051
722301542435
oct4741612627
91635766364
10663164311
11310380187
12166113787
13a7512c24
1464109d55
153d3481e1
hex27871597

663164311 has 4 divisors (see below), whose sum is σ = 664077232. Its totient is φ = 662251392.

The previous prime is 663164309. The next prime is 663164323. The reversal of 663164311 is 113461366.

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

It is a cyclic number.

It is not a de Polignac number, because 663164311 - 21 = 663164309 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 (663164351) 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, 455370 + ... + 456823.

It is an arithmetic number, because the mean of its divisors is an integer number (166019308).

Almost surely, 2663164311 is an apocalyptic number.

663164311 is a deficient number, since it is larger than the sum of its proper divisors (912921).

663164311 is an equidigital number, since it uses as much as digits as its factorization.

663164311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912920.

The product of its digits is 7776, while the sum is 31.

The square root of 663164311 is about 25751.9768367401. The cubic root of 663164311 is about 872.0479832018.

The spelling of 663164311 in words is "six hundred sixty-three million, one hundred sixty-four thousand, three hundred eleven".

Divisors: 1 727 912193 663164311