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2220330220 = 2251711357791
BaseRepresentation
bin1000010001010111…
…1000110011101100
312201201221110110121
42010111320303230
514021401031340
61004153214324
7106010331643
oct20425706354
95651843417
102220330220
11a3a355a59
1251b7013a4
13294ccc184
14170c5035a
15cedd594a
hex84578cec

2220330220 has 48 divisors (see below), whose sum is σ = 4980745728. Its totient is φ = 828477440.

The previous prime is 2220330209. The next prime is 2220330221. The reversal of 2220330220 is 220330222.

It is a junction number, because it is equal to n+sod(n) for n = 2220330194 and 2220330203.

It is not an unprimeable number, because it can be changed into a prime (2220330221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9525 + ... + 67315.

It is an arithmetic number, because the mean of its divisors is an integer number (103765536).

Almost surely, 22220330220 is an apocalyptic number.

2220330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490372864).

2220330220 is an abundant number, since it is smaller than the sum of its proper divisors (2760415508).

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

2220330220 is a wasteful number, since it uses less digits than its factorization.

2220330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57930 (or 57928 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2220330220 is about 47120.3800918456. The cubic root of 2220330220 is about 1304.5854283215.

Adding to 2220330220 its reverse (220330222), we get a palindrome (2440660442).

The spelling of 2220330220 in words is "two billion, two hundred twenty million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 113 170 226 340 452 565 1130 1921 2260 3842 7684 9605 19210 38420 57791 115582 231164 288955 577910 982447 1155820 1964894 3929788 4912235 6530383 9824470 13060766 19648940 26121532 32651915 65303830 111016511 130607660 222033022 444066044 555082555 1110165110 2220330220