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2104422020 = 225105221101
BaseRepresentation
bin111110101101110…
…1110111010000100
312102122211201022022
41331123232322010
513302213001040
6544453022312
7103102202111
oct17533567204
95378751268
102104422020
1198a989458
124a8924998
13276ca883c
1415d6bb908
15c4b3c6b5
hex7d6eee84

2104422020 has 12 divisors (see below), whose sum is σ = 4419286284. Its totient is φ = 841768800.

The previous prime is 2104421941. The next prime is 2104422029. The reversal of 2104422020 is 202244012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1287948544 + 816473476 = 35888^2 + 28574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2104422020.

It is not an unprimeable number, because it can be changed into a prime (2104422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52610531 + ... + 52610570.

It is an arithmetic number, because the mean of its divisors is an integer number (368273857).

Almost surely, 22104422020 is an apocalyptic number.

2104422020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104422020 is an abundant number, since it is smaller than the sum of its proper divisors (2314864264).

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

2104422020 is a wasteful number, since it uses less digits than its factorization.

2104422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105221110 (or 105221108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2104422020 is about 45873.9797706717. The cubic root of 2104422020 is about 1281.4773834947.

Adding to 2104422020 its reverse (202244012), we get a palindrome (2306666032).

The spelling of 2104422020 in words is "two billion, one hundred four million, four hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 105221101 210442202 420884404 526105505 1052211010 2104422020