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2200202020 = 225110010101
BaseRepresentation
bin1000001100100100…
…0110101100100100
312200100001211202201
42003021012230210
514001222431040
61002153544244
7105344260102
oct20311065444
95610054681
102200202020
11a29a58385
12514a15084
13290aa25b3
1416c2d0c72
15cd25ba9a
hex83246b24

2200202020 has 12 divisors (see below), whose sum is σ = 4620424284. Its totient is φ = 880080800.

The previous prime is 2200202009. The next prime is 2200202021. The reversal of 2200202020 is 202020022.

It can be written as a sum of positive squares in 2 ways, for example, as 297148644 + 1903053376 = 17238^2 + 43624^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

2200202020 is a modest number, since divided by 202020 gives 2200 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2200201988 and 2200202006.

It is not an unprimeable number, because it can be changed into a prime (2200202021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55005031 + ... + 55005070.

It is an arithmetic number, because the mean of its divisors is an integer number (385035357).

Almost surely, 22200202020 is an apocalyptic number.

2200202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2200202020 is an abundant number, since it is smaller than the sum of its proper divisors (2420222264).

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

2200202020 is a wasteful number, since it uses less digits than its factorization.

2200202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010110 (or 110010108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2200202020 is about 46906.3110892340. The cubic root of 2200202020 is about 1300.6312555547.

Adding to 2200202020 its reverse (202020022), we get a palindrome (2402222042).

The spelling of 2200202020 in words is "two billion, two hundred million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 110010101 220020202 440040404 550050505 1100101010 2200202020