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2000012020 = 225277361013
BaseRepresentation
bin111011100110101…
…1100001011110100
312011101101010201021
41313031130023310
513044000341040
6530243110524
7100363551556
oct16715341364
95141333637
102000012020
11936a556a6
12479972444
1325b47c986
1414d89d4d6
15ba8b624a
hex7735c2f4

2000012020 has 24 divisors (see below), whose sum is σ = 4215199464. Its totient is φ = 797114496.

The previous prime is 2000012017. The next prime is 2000012051. The reversal of 2000012020 is 202100002.

It is a happy number.

2000012020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 85599504 + 1914412516 = 9252^2 + 43754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2000011994 and 2000012012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174967 + ... + 186046.

It is an arithmetic number, because the mean of its divisors is an integer number (175633311).

Almost surely, 22000012020 is an apocalyptic number.

2000012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000012020 is an abundant number, since it is smaller than the sum of its proper divisors (2215187444).

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

2000012020 is a wasteful number, since it uses less digits than its factorization.

2000012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361299 (or 361297 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2000012020 is about 44721.4939374793. The cubic root of 2000012020 is about 1259.9235739317.

Adding to 2000012020 its reverse (202100002), we get a palindrome (2202112022).

The spelling of 2000012020 in words is "two billion, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 277 554 1108 1385 2770 5540 361013 722026 1444052 1805065 3610130 7220260 100000601 200001202 400002404 500003005 1000006010 2000012020