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3102303313220 = 225155115165661
BaseRepresentation
bin101101001001001111101…
…011111101110101000100
3101222120120212000001102212
4231021033223331311010
5401312004122010340
610333102314322552
7440063653033346
oct55111753756504
911876525001385
103102303313220
11a96752386121
124212b7129458
131967135a4877
14aa21bc09296
1555a70ca6a65
hex2d24fafdd44

3102303313220 has 12 divisors (see below), whose sum is σ = 6514836957804. Its totient is φ = 1240921325280.

The previous prime is 3102303313217. The next prime is 3102303313243. The reversal of 3102303313220 is 223133032013.

It can be written as a sum of positive squares in 2 ways, for example, as 1846859256064 + 1255444057156 = 1358992^2 + 1120466^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77557582811 + ... + 77557582850.

It is an arithmetic number, because the mean of its divisors is an integer number (542903079817).

Almost surely, 23102303313220 is an apocalyptic number.

It is an amenable number.

3102303313220 is an abundant number, since it is smaller than the sum of its proper divisors (3412533644584).

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

3102303313220 is a wasteful number, since it uses less digits than its factorization.

3102303313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155115165670 (or 155115165668 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 3102303313220 its reverse (223133032013), we get a palindrome (3325436345233).

The spelling of 3102303313220 in words is "three trillion, one hundred two billion, three hundred three million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 155115165661 310230331322 620460662644 775575828305 1551151656610 3102303313220