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2103313220 = 225105165661
BaseRepresentation
bin111110101011110…
…0000001101000100
312102120202101022122
41331113200031010
513301422010340
6544413145112
7103056603341
oct17527401504
95376671278
102103313220
1198a2a1398
124a848b198
132769aac48
1415d4ad7c8
15c49bddb5
hex7d5e0344

2103313220 has 12 divisors (see below), whose sum is σ = 4416957804. Its totient is φ = 841325280.

The previous prime is 2103313217. The next prime is 2103313271. The reversal of 2103313220 is 223133012.

It can be written as a sum of positive squares in 2 ways, for example, as 1464133696 + 639179524 = 38264^2 + 25282^2 .

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, 52582811 + ... + 52582850.

It is an arithmetic number, because the mean of its divisors is an integer number (368079817).

Almost surely, 22103313220 is an apocalyptic number.

2103313220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103313220 is an abundant number, since it is smaller than the sum of its proper divisors (2313644584).

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

2103313220 is a wasteful number, since it uses less digits than its factorization.

2103313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105165670 (or 105165668 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2103313220 is about 45861.8928959545. The cubic root of 2103313220 is about 1281.2522778623.

Adding to 2103313220 its reverse (223133012), we get a palindrome (2326446232).

The spelling of 2103313220 in words is "two billion, one hundred three million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 105165661 210331322 420662644 525828305 1051656610 2103313220