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2204340420 = 223547781681
BaseRepresentation
bin1000001101100011…
…1001000011000100
312200121212002120210
42003120321003010
514003302343140
61002422355420
7105424404312
oct20330710304
95617762523
102204340420
11a31324647
1251628bb70
132918c1159
1416ca8b0b2
15cd7c7d80
hex836390c4

2204340420 has 48 divisors (see below), whose sum is σ = 6303483648. Its totient is φ = 575316480.

The previous prime is 2204340403. The next prime is 2204340427. The reversal of 2204340420 is 240434022.

It is a super-4 number, since 4×22043404204 (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2204340427) 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, 388021 + ... + 393660.

It is an arithmetic number, because the mean of its divisors is an integer number (131322576).

Almost surely, 22204340420 is an apocalyptic number.

2204340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204340420 is an abundant number, since it is smaller than the sum of its proper divisors (4099143228).

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

2204340420 is a wasteful number, since it uses less digits than its factorization.

2204340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781740 (or 781738 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2204340420 is about 46950.4038321291. The cubic root of 2204340420 is about 1301.4462051457.

Adding to 2204340420 its reverse (240434022), we get a palindrome (2444774442).

The spelling of 2204340420 in words is "two billion, two hundred four million, three hundred forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 470 564 705 940 1410 2820 781681 1563362 2345043 3126724 3908405 4690086 7816810 9380172 11725215 15633620 23450430 36739007 46900860 73478014 110217021 146956028 183695035 220434042 367390070 440868084 551085105 734780140 1102170210 2204340420