Search a number
-
+
30111233020 = 225112983101563
BaseRepresentation
bin11100000010110001…
…001111001111111100
32212201111121010101121
4130002301033033330
5443131433424040
621455524120324
72114120154241
oct340261171774
985644533347
1030111233020
1111852008050
125a042360a4
132abb43c75b
1416591215c8
15bb379bc4a
hex702c4f3fc

30111233020 has 192 divisors, whose sum is σ = 73065162240. Its totient is φ = 10322816000.

The previous prime is 30111233011. The next prime is 30111233027. The reversal of 30111233020 is 2033211103.

It is a junction number, because it is equal to n+sod(n) for n = 30111232985 and 30111233003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111233027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53483259 + ... + 53483821.

It is an arithmetic number, because the mean of its divisors is an integer number (380547720).

Almost surely, 230111233020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111233020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36532581120).

30111233020 is an abundant number, since it is smaller than the sum of its proper divisors (42953929220).

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

30111233020 is a wasteful number, since it uses less digits than its factorization.

30111233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30111233020 its reverse (2033211103), we get a palindrome (32144444123).

The spelling of 30111233020 in words is "thirty billion, one hundred eleven million, two hundred thirty-three thousand, twenty".