Search a number
-
+
2020183820 = 2253110132261
BaseRepresentation
bin111100001101001…
…1000111100001100
312012210022222012222
41320122120330030
513114131340240
6532243314512
7101030164514
oct17032307414
95183288188
102020183820
11947383006
1248467ba38
132626c3355
14152430844
15bc54ceb5
hex78698f0c

2020183820 has 48 divisors (see below), whose sum is σ = 4422733056. Its totient is φ = 774240000.

The previous prime is 2020183801. The next prime is 2020183849. The reversal of 2020183820 is 283810202.

It is a super-2 number, since 2×20201838202 = 8162285333179584800, which contains 22 as substring.

2020183820 is a modest number, since divided by 183820 gives 2020 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2020183820.

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, 46490 + ... + 78750.

It is an arithmetic number, because the mean of its divisors is an integer number (92140272).

Almost surely, 22020183820 is an apocalyptic number.

2020183820 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 2020183820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2211366528).

2020183820 is an abundant number, since it is smaller than the sum of its proper divisors (2402549236).

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

2020183820 is a wasteful number, since it uses less digits than its factorization.

2020183820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32402 (or 32400 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2020183820 is about 44946.4550326274. The cubic root of 2020183820 is about 1264.1452082751.

The spelling of 2020183820 in words is "two billion, twenty million, one hundred eighty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 101 124 155 202 310 404 505 620 1010 2020 3131 6262 12524 15655 31310 32261 62620 64522 129044 161305 322610 645220 1000091 2000182 3258361 4000364 5000455 6516722 10000910 13033444 16291805 20001820 32583610 65167220 101009191 202018382 404036764 505045955 1010091910 2020183820