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30111111030 = 235721113143243
BaseRepresentation
bin11100000010110000…
…110001011101110110
32212201111100221001110
4130002300301131312
5443131421023110
621455521335450
72114116135500
oct340260613566
985644327043
1030111111030
1111851a34430
125a04197586
132abb3c9080
1416590ccd70
15bb3775a20
hex702c31776

30111111030 has 192 divisors, whose sum is σ = 98762727168. Its totient is φ = 5775517440.

The previous prime is 30111110993. The next prime is 30111111049. The reversal of 30111111030 is 3011111103.

It is a super-3 number, since 3×301111110303 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30111110997 and 30111111015.

It is a congruent 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 95 ways as a sum of consecutive naturals, for example, 138589 + ... + 281831.

It is an arithmetic number, because the mean of its divisors is an integer number (514389204).

Almost surely, 230111111030 is an apocalyptic number.

30111111030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111111030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49381363584).

30111111030 is an abundant number, since it is smaller than the sum of its proper divisors (68651616138).

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

30111111030 is a wasteful number, since it uses less digits than its factorization.

30111111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143291 (or 143284 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 30111111030 its reverse (3011111103), we get a palindrome (33122222133).

It can be divided in two parts, 30111 and 111030, that added together give a palindrome (141141).

The spelling of 30111111030 in words is "thirty billion, one hundred eleven million, one hundred eleven thousand, thirty".