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20000211212212 = 2271175618588249
BaseRepresentation
bin1001000110000101010010…
…11111000001011110110100
32121211000001002220012100021
410203002221133001132310
510110140413032242322
6110311545321054524
74132652610214630
oct443025137013664
977730032805307
1020000211212212
116411050908990
1222b0212327444
13b2101cc9558a
144d203031bdc0
1524a3b86a74c7
hex1230a97c17b4

20000211212212 has 48 divisors (see below), whose sum is σ = 43642600848000. Its totient is φ = 7791258585600.

The previous prime is 20000211212057. The next prime is 20000211212227. The reversal of 20000211212212 is 21221211200002.

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 15 ways as a sum of consecutive naturals, for example, 1965337 + ... + 6622912.

It is an arithmetic number, because the mean of its divisors is an integer number (909220851000).

Almost surely, 220000211212212 is an apocalyptic number.

20000211212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20000211212212 is an abundant number, since it is smaller than the sum of its proper divisors (23642389635788).

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

20000211212212 is a wasteful number, since it uses less digits than its factorization.

20000211212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8595832 (or 8595830 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20000211212212 its reverse (21221211200002), we get a palindrome (41221422412214).

The spelling of 20000211212212 in words is "twenty trillion, two hundred eleven million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 7561 15122 30244 52927 83171 105854 166342 211708 332684 582197 1164394 2328788 8588249 17176498 34352996 60117743 94470739 120235486 188941478 240470972 377882956 661295173 1322590346 2645180692 64935750689 129871501378 259743002756 454550254823 714293257579 909100509646 1428586515158 1818201019292 2857173030316 5000052803053 10000105606106 20000211212212