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203201221412 = 2277257186479
BaseRepresentation
bin1011110100111110111…
…1001001001100100100
3201102111102221120201102
42331033233021030210
511312124003041122
6233203243215232
720452341612020
oct2751757111444
9642442846642
10203201221412
11791a4879232
123346b817518
13162145c7927
149b99307380
155444514492
hex2f4fbc9324

203201221412 has 12 divisors (see below), whose sum is σ = 406402442880. Its totient is φ = 87086237736.

The previous prime is 203201221397. The next prime is 203201221429. The reversal of 203201221412 is 214122102302.

203201221412 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3628593212 + ... + 3628593267.

It is an arithmetic number, because the mean of its divisors is an integer number (33866870240).

Almost surely, 2203201221412 is an apocalyptic number.

It is an amenable number.

203201221412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

203201221412 is a wasteful number, since it uses less digits than its factorization.

203201221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257186490 (or 7257186488 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 203201221412 its reverse (214122102302), we get a palindrome (417323323714).

The spelling of 203201221412 in words is "two hundred three billion, two hundred one million, two hundred twenty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 7257186479 14514372958 29028745916 50800305353 101600610706 203201221412