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220000202020 = 22511000010101
BaseRepresentation
bin1100110011100100001…
…0001010110100100100
3210000212012012012212101
43030321002022310210
512101030022431040
6245022223501444
721615544601614
oct3147102126444
9700765165771
10220000202020
1185335418a85
1236779757884
1317990a67a41
14a91041aa44
155ac923009a
hex333908ad24

220000202020 has 12 divisors (see below), whose sum is σ = 462000424284. Its totient is φ = 88000080800.

The previous prime is 220000202017. The next prime is 220000202021. The reversal of 220000202020 is 20202000022.

220000202020 is digitally balanced in base 3, 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 2 ways, for example, as 35629582564 + 184370619456 = 188758^2 + 429384^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 220000201988 and 220000202006.

It is not an unprimeable number, because it can be changed into a prime (220000202021) 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, 5500005031 + ... + 5500005070.

It is an arithmetic number, because the mean of its divisors is an integer number (38500035357).

Almost surely, 2220000202020 is an apocalyptic number.

220000202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000202020 is an abundant number, since it is smaller than the sum of its proper divisors (242000222264).

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

220000202020 is a wasteful number, since it uses less digits than its factorization.

220000202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000010110 (or 11000010108 counting only the distinct ones).

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

Adding to 220000202020 its reverse (20202000022), we get a palindrome (240202202042).

The spelling of 220000202020 in words is "two hundred twenty billion, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 11000010101 22000020202 44000040404 55000050505 110000101010 220000202020