Base | Representation |
---|---|
bin | 1000000101011000… |
… | …0100010010100101 |
3 | 12121020022201221110 |
4 | 2001112010102211 |
5 | 13421012424410 |
6 | 555155335233 |
7 | 104530040400 |
oct | 20126042245 |
9 | 5536281843 |
10 | 2170045605 |
11 | a13a30422 |
12 | 5068b1519 |
13 | 287774370 |
14 | 1682c0d37 |
15 | ca7a1720 |
hex | 815844a5 |
2170045605 has 48 divisors (see below), whose sum is σ = 4349649024. Its totient is φ = 915707520.
The previous prime is 2170045583. The next prime is 2170045627. The reversal of 2170045605 is 5065400712.
It is an interprime number because it is at equal distance from previous prime (2170045583) and next prime (2170045627).
It is not a de Polignac number, because 2170045605 - 25 = 2170045573 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104001 + ... + 123110.
It is an arithmetic number, because the mean of its divisors is an integer number (90617688).
Almost surely, 22170045605 is an apocalyptic number.
It is an amenable number.
2170045605 is an abundant number, since it is smaller than the sum of its proper divisors (2179603419).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2170045605 is a wasteful number, since it uses less digits than its factorization.
2170045605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 227146 (or 227139 counting only the distinct ones).
The product of its (nonzero) digits is 8400, while the sum is 30.
The square root of 2170045605 is about 46583.7482927254. The cubic root of 2170045605 is about 1294.6616598455.
The spelling of 2170045605 in words is "two billion, one hundred seventy million, forty-five thousand, six hundred five".
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