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220042213220 = 225487169913297
BaseRepresentation
bin1100110011101110001…
…0011011011101100100
3210000222010020121101202
43030323202123131210
512101121301310340
6245030324142032
721616564644344
oct3147342333544
9700863217352
10220042213220
1185357102685
123678b837918
1317999686b3b
14a915c34d24
155accc7cc15
hex333b89b764

220042213220 has 48 divisors (see below), whose sum is σ = 463344873600. Its totient is φ = 87777851904.

The previous prime is 220042213219. The next prime is 220042213229. The reversal of 220042213220 is 22312240022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220042213192 and 220042213201.

It is not an unprimeable number, because it can be changed into a prime (220042213229) 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, 16541612 + ... + 16554908.

It is an arithmetic number, because the mean of its divisors is an integer number (9653018200).

Almost surely, 2220042213220 is an apocalyptic number.

220042213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220042213220 is an abundant number, since it is smaller than the sum of its proper divisors (243302660380).

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

220042213220 is a wasteful number, since it uses less digits than its factorization.

220042213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15492 (or 15490 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 220042213220 its reverse (22312240022), we get a palindrome (242354453242).

The spelling of 220042213220 in words is "two hundred twenty billion, forty-two million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 487 974 1699 1948 2435 3398 4870 6796 8495 9740 13297 16990 26594 33980 53188 66485 132970 265940 827413 1654826 3309652 4137065 6475639 8274130 12951278 16548260 22591603 25902556 32378195 45183206 64756390 90366412 112958015 129512780 225916030 451832060 11002110661 22004221322 44008442644 55010553305 110021106610 220042213220