Base | Representation |
---|---|
bin | 11101001110000111100001 |
3 | 112102011112202 |
4 | 131032013201 |
5 | 3430110001 |
6 | 432102545 |
7 | 122052236 |
oct | 35160741 |
9 | 15364482 |
10 | 7660001 |
11 | 4362088 |
12 | 2694a55 |
13 | 178275b |
14 | 103578d |
15 | a1496b |
hex | 74e1e1 |
7660001 has 2 divisors, whose sum is σ = 7660002. Its totient is φ = 7660000.
The previous prime is 7659997. The next prime is 7660027. The reversal of 7660001 is 1000667.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7480225 + 179776 = 2735^2 + 424^2 .
It is an emirp because it is prime and its reverse (1000667) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7660001 - 22 = 7659997 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (7660061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830000 + 3830001.
It is an arithmetic number, because the mean of its divisors is an integer number (3830001).
Almost surely, 27660001 is an apocalyptic number.
It is an amenable number.
7660001 is a deficient number, since it is larger than the sum of its proper divisors (1).
7660001 is an equidigital number, since it uses as much as digits as its factorization.
7660001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 20.
The square root of 7660001 is about 2767.6706812769. The cubic root of 7660001 is about 197.1255609144.
Adding to 7660001 its reverse (1000667), we get a palindrome (8660668).
The spelling of 7660001 in words is "seven million, six hundred sixty thousand, one".
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