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20000022212 = 2219972712971
BaseRepresentation
bin10010101000000110…
…000001111011000100
31220121211120101201102
4102220012001323010
5311430001202322
613104325515232
71305422245442
oct225006017304
956554511642
1020000022212
118533544785
123a61b72b18
131b696b4a91
14d7a2cdb92
157c0c72792
hex4a8181ec4

20000022212 has 24 divisors (see below), whose sum is σ = 37221975840. Its totient is φ = 9376024320.

The previous prime is 20000022199. The next prime is 20000022227. The reversal of 20000022212 is 21222000002.

It is a junction number, because it is equal to n+sod(n) for n = 20000022193 and 20000022202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349114 + ... + 1363857.

It is an arithmetic number, because the mean of its divisors is an integer number (1550915660).

Almost surely, 220000022212 is an apocalyptic number.

It is an amenable number.

20000022212 is a deficient number, since it is larger than the sum of its proper divisors (17221953628).

20000022212 is a wasteful number, since it uses less digits than its factorization.

20000022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713091 (or 2713089 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20000022212 its reverse (21222000002), we get a palindrome (41222022214).

The spelling of 20000022212 in words is "twenty billion, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 97 194 388 1843 3686 7372 2712971 5425942 10851884 51546449 103092898 206185796 263158187 526316374 1052632748 5000005553 10000011106 20000022212