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30111111115 = 531194265233
BaseRepresentation
bin11100000010110000…
…110001011111001011
32212201111100221011121
4130002300301133023
5443131421023430
621455521340111
72114116135651
oct340260613713
985644327147
1030111111115
1111851a344a8
125a04197637
132abb3c9117
1416590ccdd1
15bb3775a7a
hex702c317cb

30111111115 has 8 divisors (see below), whose sum is σ = 37298924928. Its totient is φ = 23311827840.

The previous prime is 30111111103. The next prime is 30111111131. The reversal of 30111111115 is 51111111103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30111111115 - 25 = 30111111083 is a prime.

It is a super-3 number, since 3×301111111153 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 97132462 + ... + 97132771.

It is an arithmetic number, because the mean of its divisors is an integer number (4662365616).

Almost surely, 230111111115 is an apocalyptic number.

30111111115 is a deficient number, since it is larger than the sum of its proper divisors (7187813813).

30111111115 is a wasteful number, since it uses less digits than its factorization.

30111111115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194265269.

The product of its (nonzero) digits is 15, while the sum is 16.

Adding to 30111111115 its reverse (51111111103), we get a palindrome (81222222218).

The spelling of 30111111115 in words is "thirty billion, one hundred eleven million, one hundred eleven thousand, one hundred fifteen".

Divisors: 1 5 31 155 194265233 971326165 6022222223 30111111115