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2201233220 = 2251911351263
BaseRepresentation
bin1000001100110100…
…0010011101000100
312200102000020022022
42003031002131010
514002003430340
61002232022312
7105356113364
oct20315023504
95612006268
102201233220
11a2a5a210a
12515231998
13291073a84
1416c4bc9a4
15cd3b23b5
hex83342744

2201233220 has 48 divisors (see below), whose sum is σ = 4909040640. Its totient is φ = 826753536.

The previous prime is 2201233207. The next prime is 2201233261. The reversal of 2201233220 is 223321022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17309 + ... + 68571.

It is an arithmetic number, because the mean of its divisors is an integer number (102271680).

Almost surely, 22201233220 is an apocalyptic number.

2201233220 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 2201233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2454520320).

2201233220 is an abundant number, since it is smaller than the sum of its proper divisors (2707807420).

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

2201233220 is a wasteful number, since it uses less digits than its factorization.

2201233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51404 (or 51402 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2201233220 is about 46917.3019258354. The cubic root of 2201233220 is about 1300.8344189398.

Adding to 2201233220 its reverse (223321022), we get a palindrome (2424554242).

The spelling of 2201233220 in words is "two billion, two hundred one million, two hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 113 190 226 380 452 565 1130 2147 2260 4294 8588 10735 21470 42940 51263 102526 205052 256315 512630 973997 1025260 1947994 3895988 4869985 5792719 9739970 11585438 19479940 23170876 28963595 57927190 110061661 115854380 220123322 440246644 550308305 1100616610 2201233220