Base | Representation |
---|---|
bin | 11101010011000001101101 |
3 | 112110012010111 |
4 | 131103001231 |
5 | 3431230414 |
6 | 432340021 |
7 | 122164663 |
oct | 35230155 |
9 | 15405114 |
10 | 7680109 |
11 | 43761a8 |
12 | 26a4611 |
13 | 178b958 |
14 | 103cc33 |
15 | a1a8c4 |
hex | 75306d |
7680109 has 4 divisors (see below), whose sum is σ = 7696000. Its totient is φ = 7664220.
The previous prime is 7680103. The next prime is 7680119. The reversal of 7680109 is 9010867.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9010867 = 17 ⋅530051.
It is a cyclic number.
It is not a de Polignac number, because 7680109 - 27 = 7679981 is a prime.
It is a Duffinian number.
7680109 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7680103) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7197 + ... + 8194.
It is an arithmetic number, because the mean of its divisors is an integer number (1924000).
Almost surely, 27680109 is an apocalyptic number.
It is an amenable number.
7680109 is a deficient number, since it is larger than the sum of its proper divisors (15891).
7680109 is a wasteful number, since it uses less digits than its factorization.
7680109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15890.
The product of its (nonzero) digits is 3024, while the sum is 31.
The square root of 7680109 is about 2771.3009580340. The cubic root of 7680109 is about 197.2978993348.
The spelling of 7680109 in words is "seven million, six hundred eighty thousand, one hundred nine".
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