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1042112205 = 325131176779
BaseRepresentation
bin111110000111010…
…101111011001101
32200121220210012100
4332013111323031
54113240042310
6251224025313
734552544001
oct7607257315
92617823170
101042112205
11495277362
12251002239
13137b93254
149c590701
156174dec0
hex3e1d5ecd

1042112205 has 24 divisors (see below), whose sum is σ = 1820126880. Its totient is φ = 551547360.

The previous prime is 1042112143. The next prime is 1042112219. The reversal of 1042112205 is 5022112401.

It is not a de Polignac number, because 1042112205 - 27 = 1042112077 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82495 + ... + 94284.

It is an arithmetic number, because the mean of its divisors is an integer number (75838620).

Almost surely, 21042112205 is an apocalyptic number.

1042112205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042112205 is a deficient number, since it is larger than the sum of its proper divisors (778014675).

1042112205 is a wasteful number, since it uses less digits than its factorization.

1042112205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176921 (or 176918 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1042112205 is about 32281.7627306812. The cubic root of 1042112205 is about 1013.8448375493.

Adding to 1042112205 its reverse (5022112401), we get a palindrome (6064224606).

The spelling of 1042112205 in words is "one billion, forty-two million, one hundred twelve thousand, two hundred five".

Divisors: 1 3 5 9 15 45 131 393 655 1179 1965 5895 176779 530337 883895 1591011 2651685 7955055 23158049 69474147 115790245 208422441 347370735 1042112205