Search a number
-
+
111232230220 = 2255561611511
BaseRepresentation
bin110011110010111110…
…1010010001101001100
3101122002222001202110101
41213211331102031030
53310300422331340
6123033244420444
711015303233246
oct1474575221514
9348088052411
10111232230220
114319a76a9a1
1219683547724
13a648897507
145552b03096
152d6039cc9a
hex19e5f5234c

111232230220 has 12 divisors (see below), whose sum is σ = 233587683504. Its totient is φ = 44492892080.

The previous prime is 111232230217. The next prime is 111232230223. The reversal of 111232230220 is 22032232111.

111232230220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (111232230217) and next prime (111232230223).

It is not an unprimeable number, because it can be changed into a prime (111232230223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780805736 + ... + 2780805775.

It is an arithmetic number, because the mean of its divisors is an integer number (19465640292).

Almost surely, 2111232230220 is an apocalyptic number.

111232230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111232230220 is an abundant number, since it is smaller than the sum of its proper divisors (122355453284).

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

111232230220 is a wasteful number, since it uses less digits than its factorization.

111232230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561611520 (or 5561611518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 111232230220 its reverse (22032232111), we get a palindrome (133264462331).

The spelling of 111232230220 in words is "one hundred eleven billion, two hundred thirty-two million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5561611511 11123223022 22246446044 27808057555 55616115110 111232230220