Base | Representation |
---|---|
bin | 111101010001110011101 |
3 | 10210000102002 |
4 | 13222032131 |
5 | 1003223330 |
6 | 111012045 |
7 | 23032061 |
oct | 7521635 |
9 | 3700362 |
10 | 2007965 |
11 | 1151683 |
12 | 80a025 |
13 | 553c5b |
14 | 3a3aa1 |
15 | 299e45 |
hex | 1ea39d |
2007965 has 4 divisors (see below), whose sum is σ = 2409564. Its totient is φ = 1606368.
The previous prime is 2007961. The next prime is 2007979. The reversal of 2007965 is 5697002.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5697002 = 2 ⋅2848501.
It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 657721 = 1162^2 + 811^2 .
It is a cyclic number.
It is not a de Polignac number, because 2007965 - 22 = 2007961 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2007961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200792 + ... + 200801.
It is an arithmetic number, because the mean of its divisors is an integer number (602391).
22007965 is an apocalyptic number.
It is an amenable number.
2007965 is a deficient number, since it is larger than the sum of its proper divisors (401599).
2007965 is an equidigital number, since it uses as much as digits as its factorization.
2007965 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 401598.
The product of its (nonzero) digits is 3780, while the sum is 29.
The square root of 2007965 is about 1417.0268169657. The cubic root of 2007965 is about 126.1591379684.
The spelling of 2007965 in words is "two million, seven thousand, nine hundred sixty-five".
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