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30333322121 = 139218225339
BaseRepresentation
bin11100010000000000…
…011100001110001001
32220021222111102100212
4130100000130032021
5444110312301441
621533540210505
72122454661314
oct342000341611
986258442325
1030333322121
1111956407963
125a66699a35
132b2545c01b
14167a81397b
15bc801aeeb
hex71001c389

30333322121 has 4 divisors (see below), whose sum is σ = 30551547600. Its totient is φ = 30115096644.

The previous prime is 30333322109. The next prime is 30333322147. The reversal of 30333322121 is 12122333303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30333322121 - 234 = 13153452937 is a prime.

It is a super-2 number, since 2×303333221212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30333322181) 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, 109112531 + ... + 109112808.

It is an arithmetic number, because the mean of its divisors is an integer number (7637886900).

Almost surely, 230333322121 is an apocalyptic number.

It is an amenable number.

30333322121 is a deficient number, since it is larger than the sum of its proper divisors (218225479).

30333322121 is a wasteful number, since it uses less digits than its factorization.

30333322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218225478.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30333322121 its reverse (12122333303), we get a palindrome (42455655424).

The spelling of 30333322121 in words is "thirty billion, three hundred thirty-three million, three hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 139 218225339 30333322121