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30111111210 = 2351003703707
BaseRepresentation
bin11100000010110000…
…110001100000101010
32212201111100221022010
4130002300301200222
5443131421024320
621455521340350
72114116136145
oct340260614052
985644327263
1030111111210
1111851a34584
125a041976b6
132abb3c918b
1416590cd05c
15bb3775ae0
hex702c3182a

30111111210 has 16 divisors (see below), whose sum is σ = 72266666976. Its totient is φ = 8029629648.

The previous prime is 30111111187. The next prime is 30111111223. The reversal of 30111111210 is 1211111103.

It is a super-3 number, since 3×301111112103 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501851824 + ... + 501851883.

It is an arithmetic number, because the mean of its divisors is an integer number (4516666686).

Almost surely, 230111111210 is an apocalyptic number.

30111111210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30111111210 is an abundant number, since it is smaller than the sum of its proper divisors (42155555766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30111111210 is a wasteful number, since it uses less digits than its factorization.

30111111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003703717.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 30111111210 its reverse (1211111103), we get a palindrome (31322222313).

The spelling of 30111111210 in words is "thirty billion, one hundred eleven million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1003703707 2007407414 3011111121 5018518535 6022222242 10037037070 15055555605 30111111210