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30211330231 = 233313968387
BaseRepresentation
bin11100001000101111…
…000101000010110111
32212222110221120221201
4130020233011002313
5443333100031411
621513501353331
72116444032655
oct341057050267
985873846851
1030211330231
11118a3565615
125a31868847
132b060b8584
141668539dd5
15bbc4703c1
hex708bc50b7

30211330231 has 8 divisors (see below), whose sum is σ = 31620115584. Its totient is φ = 28810482360.

The previous prime is 30211330229. The next prime is 30211330301. The reversal of 30211330231 is 13203311203.

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 30211330231 - 21 = 30211330229 is a prime.

It is a super-2 number, since 2×302113302312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30211330199 and 30211330208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211330531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1976581 + ... + 1991806.

It is an arithmetic number, because the mean of its divisors is an integer number (3952514448).

Almost surely, 230211330231 is an apocalyptic number.

30211330231 is a deficient number, since it is larger than the sum of its proper divisors (1408785353).

30211330231 is a wasteful number, since it uses less digits than its factorization.

30211330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968741.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30211330231 its reverse (13203311203), we get a palindrome (43414641434).

The spelling of 30211330231 in words is "thirty billion, two hundred eleven million, three hundred thirty thousand, two hundred thirty-one".

Divisors: 1 23 331 7613 3968387 91272901 1313536097 30211330231