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206884888220 = 22523647695131
BaseRepresentation
bin1100000010101101001…
…1001101111010011100
3201210000011102020121102
43000223103031322130
511342200012410340
6235012553052232
720642541351263
oct3005323157234
9653004366542
10206884888220
117a81514266a
12341193b7078
131668082012a
14a0286355da
1555acb01215
hex302b4cde9c

206884888220 has 48 divisors (see below), whose sum is σ = 454049100288. Its totient is φ = 79033500480.

The previous prime is 206884888207. The next prime is 206884888237. The reversal of 206884888220 is 22888488602.

206884888220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 49946 + ... + 645185.

It is an arithmetic number, because the mean of its divisors is an integer number (9459356256).

Almost surely, 2206884888220 is an apocalyptic number.

206884888220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206884888220 is an abundant number, since it is smaller than the sum of its proper divisors (247164212068).

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

206884888220 is a wasteful number, since it uses less digits than its factorization.

206884888220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695810 (or 695808 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 56.

The spelling of 206884888220 in words is "two hundred six billion, eight hundred eighty-four million, eight hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 647 1294 2588 3235 6470 12940 14881 29762 59524 74405 148810 297620 695131 1390262 2780524 3475655 6951310 13902620 15988013 31976026 63952052 79940065 159880130 319760260 449749757 899499514 1798999028 2248748785 4497497570 8994995140 10344244411 20688488822 41376977644 51721222055 103442444110 206884888220