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30110211012 = 223719731092371
BaseRepresentation
bin11100000010101101…
…010101101111000100
32212201102200012110110
4130002231111233010
5443131203223022
621455450153020
72114105366520
oct340255255704
985642605413
1030110211012
111185147a212
125a03a22770
132abb17250b
141658d36d80
15bb364900c
hex702b55bc4

30110211012 has 192 divisors, whose sum is σ = 86500198400. Its totient is φ = 7961379840.

The previous prime is 30110210983. The next prime is 30110211013. The reversal of 30110211012 is 21011201103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30110211013) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 12698187 + ... + 12700557.

Almost surely, 230110211012 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 30110211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43250099200).

30110211012 is an abundant number, since it is smaller than the sum of its proper divisors (56389987388).

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

30110211012 is a wasteful number, since it uses less digits than its factorization.

30110211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586 (or 2584 counting only the distinct ones).

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

Adding to 30110211012 its reverse (21011201103), we get a palindrome (51121412115).

Subtracting from 30110211012 its reverse (21011201103), we obtain a palindrome (9099009909).

The spelling of 30110211012 in words is "thirty billion, one hundred ten million, two hundred eleven thousand, twelve".