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30221023311 = 3253569111347
BaseRepresentation
bin11100001001010100…
…000011100001001111
32220000011012001100200
4130021110003201033
5443343040221221
621514445224543
72116622313453
oct341124034117
986004161320
1030221023311
11118a8a86126
125a34b62153
132b0810051b
141669940663
15bbd237426
hex70950384f

30221023311 has 24 divisors (see below), whose sum is σ = 44554788720. Its totient is φ = 19732292736.

The previous prime is 30221023303. The next prime is 30221023331. The reversal of 30221023311 is 11332012203.

It is not a de Polignac number, because 30221023311 - 23 = 30221023303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221023331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215740 + ... + 327086.

It is an arithmetic number, because the mean of its divisors is an integer number (1856449530).

Almost surely, 230221023311 is an apocalyptic number.

30221023311 is a deficient number, since it is larger than the sum of its proper divisors (14333765409).

30221023311 is a wasteful number, since it uses less digits than its factorization.

30221023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111975 (or 111972 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30221023311 its reverse (11332012203), we get a palindrome (41553035514).

The spelling of 30221023311 in words is "thirty billion, two hundred twenty-one million, twenty-three thousand, three hundred eleven".

Divisors: 1 3 9 53 159 477 569 1707 5121 30157 90471 111347 271413 334041 1002123 5901391 17704173 53112519 63356443 190069329 570207987 3357891479 10073674437 30221023311