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2313223303220 = 225115661165161
BaseRepresentation
bin100001101010010110110…
…110100111000000110100
322012010211111202021121022
4201222112312213000310
5300344440131200340
64530402523240312
7326060554440014
oct41522666470064
98163744667538
102313223303220
1181203a281555
12314399979098
1313a19cabaa4b
147dd63c87c44
154028b4ec3b5
hex21a96da7034

2313223303220 has 12 divisors (see below), whose sum is σ = 4857768936804. Its totient is φ = 925289321280.

The previous prime is 2313223303217. The next prime is 2313223303273. The reversal of 2313223303220 is 223033223132.

It can be written as a sum of positive squares in 2 ways, for example, as 1207247167504 + 1105976135716 = 1098748^2 + 1051654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2313223303220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57830582561 + ... + 57830582600.

It is an arithmetic number, because the mean of its divisors is an integer number (404814078067).

Almost surely, 22313223303220 is an apocalyptic number.

2313223303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313223303220 is an abundant number, since it is smaller than the sum of its proper divisors (2544545633584).

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

2313223303220 is a wasteful number, since it uses less digits than its factorization.

2313223303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115661165170 (or 115661165168 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 2313223303220 its reverse (223033223132), we get a palindrome (2536256526352).

The spelling of 2313223303220 in words is "two trillion, three hundred thirteen billion, two hundred twenty-three million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 115661165161 231322330322 462644660644 578305825805 1156611651610 2313223303220