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22103202320 = 245276290029
BaseRepresentation
bin10100100101011101…
…000001101000010000
32010001102002000102222
4110211131001220100
5330231404433240
614053140200212
71411511056043
oct244535015020
963042060388
1022103202320
119412755061
12434a399068
132113347254
1410d9766c5a
15895716eb5
hex525741a10

22103202320 has 20 divisors (see below), whose sum is σ = 51389945580. Its totient is φ = 8841280896.

The previous prime is 22103202299. The next prime is 22103202361. The reversal of 22103202320 is 2320230122.

It can be written as a sum of positive squares in 2 ways, for example, as 12614883856 + 9488318464 = 112316^2 + 97408^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 138144935 + ... + 138145094.

It is an arithmetic number, because the mean of its divisors is an integer number (2569497279).

Almost surely, 222103202320 is an apocalyptic number.

22103202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22103202320 is an abundant number, since it is smaller than the sum of its proper divisors (29286743260).

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

22103202320 is a wasteful number, since it uses less digits than its factorization.

22103202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276290042 (or 276290036 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22103202320 its reverse (2320230122), we get a palindrome (24423432442).

The spelling of 22103202320 in words is "twenty-two billion, one hundred three million, two hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 276290029 552580058 1105160116 1381450145 2210320232 2762900290 4420640464 5525800580 11051601160 22103202320