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12013102220 = 225785807873
BaseRepresentation
bin10110011000000100…
…10110010010001100
31011000012202211012212
423030002112102030
5144100323232340
65304014245552
7603460453430
oct131402262214
934005684185
1012013102220
1151050a0559
1223b31b68b8
131195aa1412
1481d66c9c0
154a49aca65
hex2cc09648c

12013102220 has 24 divisors (see below), whose sum is σ = 28831445664. Its totient is φ = 4118777856.

The previous prime is 12013102201. The next prime is 12013102247. The reversal of 12013102220 is 2220131021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12013102195 and 12013102204.

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, 42903797 + ... + 42904076.

It is an arithmetic number, because the mean of its divisors is an integer number (1201310236).

Almost surely, 212013102220 is an apocalyptic number.

12013102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013102220 is an abundant number, since it is smaller than the sum of its proper divisors (16818343444).

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

12013102220 is a wasteful number, since it uses less digits than its factorization.

12013102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85807889 (or 85807887 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12013102220 its reverse (2220131021), we get a palindrome (14233233241).

The spelling of 12013102220 in words is "twelve billion, thirteen million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 85807873 171615746 343231492 429039365 600655111 858078730 1201310222 1716157460 2402620444 3003275555 6006551110 12013102220