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20012315041212 = 22313128284070777
BaseRepresentation
bin1001000110011011110101…
…11011011101110110111100
32121212011021122101102022020
410203031322323131312330
510110340210122304322
6110321310340120140
74133561552112054
oct443157273356674
977764248342266
1020012315041212
1164161a213684a
1222b262b996050
13b221cb7b1680
144d285ba46564
1524a8760d705c
hex12337aedddbc

20012315041212 has 24 divisors (see below), whose sum is σ = 50287355744976. Its totient is φ = 6157635397248.

The previous prime is 20012315041207. The next prime is 20012315041223. The reversal of 20012315041212 is 21214051321002.

It is a happy number.

It is a congruent number.

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, 64142035233 + ... + 64142035544.

It is an arithmetic number, because the mean of its divisors is an integer number (2095306489374).

Almost surely, 220012315041212 is an apocalyptic number.

It is an amenable number.

20012315041212 is an abundant number, since it is smaller than the sum of its proper divisors (30275040703764).

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

20012315041212 is a wasteful number, since it uses less digits than its factorization.

20012315041212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128284070797 (or 128284070795 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20012315041212 its reverse (21214051321002), we get a palindrome (41226366362214).

The spelling of 20012315041212 in words is "twenty trillion, twelve billion, three hundred fifteen million, forty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 128284070777 256568141554 384852212331 513136283108 769704424662 1539408849324 1667692920101 3335385840202 5003078760303 6670771680404 10006157520606 20012315041212