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201320011212 = 22331353599577
BaseRepresentation
bin1011101101111110011…
…0111001010111001100
3201020122100010012110120
42323133212321113030
511244300410324322
6232252442304540
720354616601125
oct2733746712714
9636570105416
10201320011212
1178419997161
12330257b8150
1315ca49426b8
149a5b53104c
1553842b8a5c
hex2edf9b95cc

201320011212 has 24 divisors (see below), whose sum is σ = 471247489776. Its totient is φ = 66892270848.

The previous prime is 201320011153. The next prime is 201320011231. The reversal of 201320011212 is 212110023102.

It is a junction number, because it is equal to n+sod(n) for n = 201320011191 and 201320011200.

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, 26796033 + ... + 26803544.

It is an arithmetic number, because the mean of its divisors is an integer number (19635312074).

Almost surely, 2201320011212 is an apocalyptic number.

It is an amenable number.

201320011212 is an abundant number, since it is smaller than the sum of its proper divisors (269927478564).

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

201320011212 is a wasteful number, since it uses less digits than its factorization.

201320011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53599897 (or 53599895 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201320011212 its reverse (212110023102), we get a palindrome (413430034314).

The spelling of 201320011212 in words is "two hundred one billion, three hundred twenty million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 313 626 939 1252 1878 3756 53599577 107199154 160798731 214398308 321597462 643194924 16776667601 33553335202 50330002803 67106670404 100660005606 201320011212