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2220000000 = 2835737
BaseRepresentation
bin1000010001010010…
…1000001100000000
312201201022200111020
42010110220030000
514021310000000
61004142145440
7106004455131
oct20424501400
95651280436
102220000000
11a3a14a949
1251b582280
13294c14a8a
14170ba5c88
15ced6cba0
hex84528300

2220000000 has 288 divisors, whose sum is σ = 7585136832. Its totient is φ = 576000000.

The previous prime is 2219999989. The next prime is 2220000031. The reversal of 2220000000 is 222.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59999982 + ... + 60000018.

Almost surely, 22220000000 is an apocalyptic number.

2220000000 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 2220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792568416).

2220000000 is an abundant number, since it is smaller than the sum of its proper divisors (5365136832).

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

2220000000 is an frugal number, since it uses more digits than its factorization.

2220000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 2220000000 is about 47116.8759575590. The cubic root of 2220000000 is about 1304.5207500205.

Adding to 2220000000 its reverse (222), we get a palindrome (2220000222).

2220000000 divided by its reverse (222) gives a 7-th power (10000000 = 107).

The spelling of 2220000000 in words is "two billion, two hundred twenty million", and thus it is an aban number.