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30120311101 = 474019159457
BaseRepresentation
bin11100000011010011…
…110111100100111101
32212202010200100011211
4130003103313210331
5443141244423401
621500450444421
72114260264036
oct340323674475
985663610154
1030120311101
11118571485a1
125a07293711
132ac029a7ba
14165a405a8d
15bb4491951
hex7034f793d

30120311101 has 8 divisors (see below), whose sum is σ = 30769015680. Its totient is φ = 29471933568.

The previous prime is 30120311063. The next prime is 30120311113. The reversal of 30120311101 is 10111302103.

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 30120311101 - 211 = 30120309053 is a prime.

It is a super-3 number, since 3×301203111013 (a number of 32 digits) contains 333 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 (30120311141) 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, 109165 + ... + 268621.

It is an arithmetic number, because the mean of its divisors is an integer number (3846126960).

Almost surely, 230120311101 is an apocalyptic number.

It is an amenable number.

30120311101 is a deficient number, since it is larger than the sum of its proper divisors (648704579).

30120311101 is a wasteful number, since it uses less digits than its factorization.

30120311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163523.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30120311101 its reverse (10111302103), we get a palindrome (40231613204).

The spelling of 30120311101 in words is "thirty billion, one hundred twenty million, three hundred eleven thousand, one hundred one".

Divisors: 1 47 4019 159457 188893 7494479 640857683 30120311101