Base | Representation |
---|---|
bin | 111110101111111… |
… | …1100010011000010 |
3 | 12102201220202220210 |
4 | 1331133330103002 |
5 | 13303003303232 |
6 | 544532414550 |
7 | 103114446066 |
oct | 17537742302 |
9 | 5381822823 |
10 | 2105525442 |
11 | 990572479 |
12 | 4a9177456 |
13 | 2772a3b57 |
14 | 15d8c7aa6 |
15 | c4ca95cc |
hex | 7d7fc4c2 |
2105525442 has 32 divisors (see below), whose sum is σ = 4253879232. Its totient is φ = 694738944.
The previous prime is 2105525437. The next prime is 2105525453. The reversal of 2105525442 is 2445255012.
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 15 ways as a sum of consecutive naturals, for example, 247158 + ... + 255534.
It is an arithmetic number, because the mean of its divisors is an integer number (132933726).
Almost surely, 22105525442 is an apocalyptic number.
2105525442 is an abundant number, since it is smaller than the sum of its proper divisors (2148353790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2105525442 is a wasteful number, since it uses less digits than its factorization.
2105525442 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8802.
The product of its (nonzero) digits is 16000, while the sum is 30.
The square root of 2105525442 is about 45886.0048598699. The cubic root of 2105525442 is about 1281.7013188172.
The spelling of 2105525442 in words is "two billion, one hundred five million, five hundred twenty-five thousand, four hundred forty-two".
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