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30233320321 = 1731297134741
BaseRepresentation
bin11100001010000010…
…111101101110000001
32220001000022210200111
4130022002331232001
5443404212222241
621520004551321
72120131661011
oct341202755601
986030283614
1030233320321
1111904a15046
125a390b2541
132b0a817769
14166b421c41
15bbe365c81
hex70a0bdb81

30233320321 has 8 divisors (see below), whose sum is σ = 30431750184. Its totient is φ = 30035162880.

The previous prime is 30233320289. The next prime is 30233320331. The reversal of 30233320321 is 12302333203.

It can be written as a sum of positive squares in 4 ways, for example, as 10383610000 + 19849710321 = 101900^2 + 140889^2 .

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 30233320321 - 25 = 30233320289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30233320292 and 30233320301.

It is not an unprimeable number, because it can be changed into a prime (30233320331) 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, 157011 + ... + 291751.

It is an arithmetic number, because the mean of its divisors is an integer number (3803968773).

Almost surely, 230233320321 is an apocalyptic number.

It is an amenable number.

30233320321 is a deficient number, since it is larger than the sum of its proper divisors (198429863).

30233320321 is a wasteful number, since it uses less digits than its factorization.

30233320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136211.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 30233320321 its reverse (12302333203), we get a palindrome (42535653524).

The spelling of 30233320321 in words is "thirty billion, two hundred thirty-three million, three hundred twenty thousand, three hundred twenty-one".

Divisors: 1 173 1297 134741 224381 23310193 174759077 30233320321