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2020422220 = 225233523829
BaseRepresentation
bin111100001101101…
…0011001001001100
312012210210002020121
41320123103021030
513114212002340
6532252354324
7101032206535
oct17033231114
95183702217
102020422220
11947526133
124847759a4
13262777a0b
1415249368c
15bc59894a
hex786d324c

2020422220 has 48 divisors (see below), whose sum is σ = 4274393760. Its totient is φ = 802192896.

The previous prime is 2020422161. The next prime is 2020422223. The reversal of 2020422220 is 222240202.

It is a junction number, because it is equal to n+sod(n) for n = 2020422194 and 2020422203.

It is not an unprimeable number, because it can be changed into a prime (2020422223) 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, 2436766 + ... + 2437594.

It is an arithmetic number, because the mean of its divisors is an integer number (89049870).

Almost surely, 22020422220 is an apocalyptic number.

2020422220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020422220 is an abundant number, since it is smaller than the sum of its proper divisors (2253971540).

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

2020422220 is a wasteful number, since it uses less digits than its factorization.

2020422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2020422220 is about 44949.1069989160. The cubic root of 2020422220 is about 1264.1949331831.

Adding to 2020422220 its reverse (222240202), we get a palindrome (2242662422).

It can be divided in two parts, 20204 and 22220, that added together give a palindrome (42424).

The spelling of 2020422220 in words is "two billion, twenty million, four hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 233 466 523 829 932 1046 1165 1658 2092 2330 2615 3316 4145 4660 5230 8290 10460 16580 121859 193157 243718 386314 433567 487436 609295 772628 867134 965785 1218590 1734268 1931570 2167835 2437180 3863140 4335670 8671340 101021111 202042222 404084444 505105555 1010211110 2020422220