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30221020223 = 237191827479
BaseRepresentation
bin11100001001010100…
…000010110000111111
32220000011011220010022
4130021110002300333
5443343040121343
621514445202355
72116622301452
oct341124026077
986004156108
1030221020223
11118a8a83879
125a34b603bb
132b080cbcb4
14166993d499
15bbd236568
hex709502c3f

30221020223 has 8 divisors (see below), whose sum is σ = 31578854400. Its totient is φ = 28866842488.

The previous prime is 30221020183. The next prime is 30221020229. The reversal of 30221020223 is 32202012203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30221020223 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 (30221020229) 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, 897203 + ... + 930276.

It is an arithmetic number, because the mean of its divisors is an integer number (3947356800).

Almost surely, 230221020223 is an apocalyptic number.

30221020223 is a deficient number, since it is larger than the sum of its proper divisors (1357834177).

30221020223 is a wasteful number, since it uses less digits than its factorization.

30221020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828221.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30221020223 its reverse (32202012203), we get a palindrome (62423032426).

The spelling of 30221020223 in words is "thirty billion, two hundred twenty-one million, twenty thousand, two hundred twenty-three".

Divisors: 1 23 719 16537 1827479 42032017 1313957401 30221020223