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2220311300 = 225222203113
BaseRepresentation
bin1000010001010111…
…0100001100000100
312201201220111111212
42010111310030010
514021344430200
61004152550552
7106010222534
oct20425641404
95651814455
102220311300
11a3a342819
1251b6b2458
13294cc368c
14170c474c4
15cedd0035
hex84574304

2220311300 has 18 divisors (see below), whose sum is σ = 4818075738. Its totient is φ = 888124480.

The previous prime is 2220311297. The next prime is 2220311339. The reversal of 2220311300 is 31130222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 793436224 + 1426875076 = 28168^2 + 37774^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11101457 + ... + 11101656.

Almost surely, 22220311300 is an apocalyptic number.

2220311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220311300 is an abundant number, since it is smaller than the sum of its proper divisors (2597764438).

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

2220311300 is a wasteful number, since it uses less digits than its factorization.

2220311300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22203127 (or 22203120 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2220311300 is about 47120.1793290306. The cubic root of 2220311300 is about 1304.5817227426.

Adding to 2220311300 its reverse (31130222), we get a palindrome (2251441522).

The spelling of 2220311300 in words is "two billion, two hundred twenty million, three hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 22203113 44406226 88812452 111015565 222031130 444062260 555077825 1110155650 2220311300