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30211120231 = 374119915043
BaseRepresentation
bin11100001000101110…
…010001110001100111
32212222110112220212221
4130020232101301213
5443333021321411
621513453053211
72116442166505
oct341056216147
985873486787
1030211120231
11118a3431866
125a31787207
132b06043b06
1416684c3675
15bbc42d071
hex708b91c67

30211120231 has 8 divisors (see below), whose sum is σ = 31784410224. Its totient is φ = 28677660480.

The previous prime is 30211120201. The next prime is 30211120249. The reversal of 30211120231 is 13202111203.

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 30211120231 - 213 = 30211112039 is a prime.

It is a super-2 number, since 2×302111202312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211120201) 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, 9956005 + ... + 9959038.

It is an arithmetic number, because the mean of its divisors is an integer number (3973051278).

Almost surely, 230211120231 is an apocalyptic number.

30211120231 is a deficient number, since it is larger than the sum of its proper divisors (1573289993).

30211120231 is a wasteful number, since it uses less digits than its factorization.

30211120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19915121.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30211120231 its reverse (13202111203), we get a palindrome (43413231434).

The spelling of 30211120231 in words is "thirty billion, two hundred eleven million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 37 41 1517 19915043 736856591 816516763 30211120231