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212285235020 = 22561174004291
BaseRepresentation
bin1100010110110100101…
…1111001111101001100
3202021221112010021201212
43011231023321331030
511434230010010040
6241304505153552
721223424503505
oct3055513717514
9667845107655
10212285235020
11820365320a1
1235185a8b8b8
13170315b2101
14a3bb94bbac
1557c6c88d65
hex316d2f9f4c

212285235020 has 24 divisors (see below), whose sum is σ = 453107176368. Its totient is φ = 83522059200.

The previous prime is 212285235007. The next prime is 212285235037. The reversal of 212285235020 is 20532582212.

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, 87000926 + ... + 87003365.

It is an arithmetic number, because the mean of its divisors is an integer number (18879465682).

Almost surely, 2212285235020 is an apocalyptic number.

212285235020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212285235020 is an abundant number, since it is smaller than the sum of its proper divisors (240821941348).

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

212285235020 is a wasteful number, since it uses less digits than its factorization.

212285235020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174004361 (or 174004359 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 212285235020 in words is "two hundred twelve billion, two hundred eighty-five million, two hundred thirty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 174004291 348008582 696017164 870021455 1740042910 3480085820 10614261751 21228523502 42457047004 53071308755 106142617510 212285235020