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2012251444 = 227217603917
BaseRepresentation
bin111011111110000…
…1000010100110100
312012020101222001021
41313330020110310
513110114021234
6531401310524
7100602566200
oct16774102464
95166358037
102012251444
11942955325
12481a95444
13260b76938
14151367b00
15bb9d29b4
hex77f08534

2012251444 has 36 divisors (see below), whose sum is σ = 4337339076. Its totient is φ = 811663104.

The previous prime is 2012251433. The next prime is 2012251453. The reversal of 2012251444 is 4441522102.

It can be written as a sum of positive squares in 2 ways, for example, as 1686087844 + 326163600 = 41062^2 + 18060^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298627 + ... + 305290.

It is an arithmetic number, because the mean of its divisors is an integer number (120481641).

Almost surely, 22012251444 is an apocalyptic number.

It is an amenable number.

2012251444 is an abundant number, since it is smaller than the sum of its proper divisors (2325087632).

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

2012251444 is a wasteful number, since it uses less digits than its factorization.

2012251444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603952 (or 603943 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2012251444 is about 44858.1257299054. The cubic root of 2012251444 is about 1262.4884566340.

Adding to 2012251444 its reverse (4441522102), we get a palindrome (6453773546).

The spelling of 2012251444 in words is "two billion, twelve million, two hundred fifty-one thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 3332 603917 1207834 2415668 4227419 8454838 10266589 16909676 20533178 29591933 41066356 59183866 71866123 118367732 143732246 287464492 503062861 1006125722 2012251444