Search a number
-
+
22303012220 = 2251975660663
BaseRepresentation
bin10100110001010111…
…001111010101111100
32010120100001102002122
4110301113033111330
5331134032342340
614125034542112
71416455322146
oct246127172574
963510042078
1022303012220
119505518205
1243a5297938
132145865b68
1411180d9c96
158a8034db5
hex5315cf57c

22303012220 has 24 divisors (see below), whose sum is σ = 47074081824. Its totient is φ = 8875918016.

The previous prime is 22303012201. The next prime is 22303012241. The reversal of 22303012220 is 2221030322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2826392 + ... + 2834271.

It is an arithmetic number, because the mean of its divisors is an integer number (1961420076).

Almost surely, 222303012220 is an apocalyptic number.

22303012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22303012220 is an abundant number, since it is smaller than the sum of its proper divisors (24771069604).

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

22303012220 is a wasteful number, since it uses less digits than its factorization.

22303012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660869 (or 5660867 counting only the distinct ones).

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

Adding to 22303012220 its reverse (2221030322), we get a palindrome (24524042542).

The spelling of 22303012220 in words is "twenty-two billion, three hundred three million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 5660663 11321326 22642652 28303315 56606630 113213260 1115150611 2230301222 4460602444 5575753055 11151506110 22303012220