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30221321223 = 389113188469
BaseRepresentation
bin11100001001010101…
…001100010000000111
32220000011202012000110
4130021111030100013
5443343124234343
621514455444103
72116624664142
oct341125142007
986004665013
1030221321223
11118a9169a35
125a35086633
132b081a5cc2
1416699bb059
15bbd295833
hex70954c407

30221321223 has 8 divisors (see below), whose sum is σ = 40747849200. Its totient is φ = 19921170368.

The previous prime is 30221321177. The next prime is 30221321233. The reversal of 30221321223 is 32212312203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30221321223 - 230 = 29147579399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30221321223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221321233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56593968 + ... + 56594501.

It is an arithmetic number, because the mean of its divisors is an integer number (5093481150).

Almost surely, 230221321223 is an apocalyptic number.

30221321223 is a deficient number, since it is larger than the sum of its proper divisors (10526527977).

30221321223 is a wasteful number, since it uses less digits than its factorization.

30221321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113188561.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30221321223 its reverse (32212312203), we get a palindrome (62433633426).

It can be divided in two parts, 302 and 21321223, that multiplied together give a palindrome (6439009346).

The spelling of 30221321223 in words is "thirty billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 89 267 113188469 339565407 10073773741 30221321223