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30331020211 = 372106138923
BaseRepresentation
bin11100001111110111…
…101010001110110011
32220021211011110201221
4130033313222032303
5444104220121321
621533415005511
72122426263232
oct341767521663
986254143657
1030331020211
1111955085458
125a65969897
132b24b3434b
14167a3b4b19
15bc7c13e41
hex70fdea3b3

30331020211 has 8 divisors (see below), whose sum is σ = 31153056944. Its totient is φ = 29509103520.

The previous prime is 30331020193. The next prime is 30331020227. The reversal of 30331020211 is 11202013303.

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 30331020211 - 217 = 30330889139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30331020011) 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, 759796 + ... + 798718.

It is an arithmetic number, because the mean of its divisors is an integer number (3894132118).

Almost surely, 230331020211 is an apocalyptic number.

30331020211 is a deficient number, since it is larger than the sum of its proper divisors (822036733).

30331020211 is a wasteful number, since it uses less digits than its factorization.

30331020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60021.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30331020211 its reverse (11202013303), we get a palindrome (41533033514).

The spelling of 30331020211 in words is "thirty billion, three hundred thirty-one million, twenty thousand, two hundred eleven".

Divisors: 1 37 21061 38923 779257 1440151 819757303 30331020211