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213313032223 = 762127990163
BaseRepresentation
bin1100011010101001110…
…0101001000000011111
3202101121011002210102221
43012222130221000133
511443331114012343
6241554502330211
721261044600014
oct3065234510037
9671534083387
10213313032223
1182513711375
1235412129967
1317166502735
14a47825370b
15583710b5ed
hex31aa72901f

213313032223 has 4 divisors (see below), whose sum is σ = 213341030008. Its totient is φ = 213285034440.

The previous prime is 213313032217. The next prime is 213313032241. The reversal of 213313032223 is 322230313312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-213313032223 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 (213313039223) 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, 13987461 + ... + 14002702.

It is an arithmetic number, because the mean of its divisors is an integer number (53335257502).

Almost surely, 2213313032223 is an apocalyptic number.

213313032223 is a deficient number, since it is larger than the sum of its proper divisors (27997785).

213313032223 is an equidigital number, since it uses as much as digits as its factorization.

213313032223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27997784.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 213313032223 its reverse (322230313312), we get a palindrome (535543345535).

The spelling of 213313032223 in words is "two hundred thirteen billion, three hundred thirteen million, thirty-two thousand, two hundred twenty-three".

Divisors: 1 7621 27990163 213313032223