Base | Representation |
---|---|
bin | 111101101011010… |
… | …0010101110101001 |
3 | 12100020010211212212 |
4 | 1323112202232221 |
5 | 13214243210420 |
6 | 541204414505 |
7 | 102166343030 |
oct | 17326425651 |
9 | 5306124785 |
10 | 2069506985 |
11 | 972201257 |
12 | 4990a7435 |
13 | 26c9a2660 |
14 | 158bcd717 |
15 | c1a423c5 |
hex | 7b5a2ba9 |
2069506985 has 32 divisors (see below), whose sum is σ = 3236308992. Its totient is φ = 1232870400.
The previous prime is 2069506981. The next prime is 2069506991. The reversal of 2069506985 is 5896059602.
It is not a de Polignac number, because 2069506985 - 22 = 2069506981 is a prime.
It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (2069506981) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126041 + ... + 141510.
It is an arithmetic number, because the mean of its divisors is an integer number (101134656).
Almost surely, 22069506985 is an apocalyptic number.
It is an amenable number.
2069506985 is a deficient number, since it is larger than the sum of its proper divisors (1166802007).
2069506985 is a wasteful number, since it uses less digits than its factorization.
2069506985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267593.
The product of its (nonzero) digits is 1166400, while the sum is 50.
The square root of 2069506985 is about 45491.8342672616. The cubic root of 2069506985 is about 1274.3507108023.
The spelling of 2069506985 in words is "two billion, sixty-nine million, five hundred six thousand, nine hundred eighty-five".
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