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7680093 = 32560031
BaseRepresentation
bin11101010011000001011101
3112110012002220
4131103001131
53431230333
6432335553
7122164641
oct35230135
915405086
107680093
114376193
1226a45b9
13178b945
14103cc21
15a1a8b3
hex75305d

7680093 has 4 divisors (see below), whose sum is σ = 10240128. Its totient is φ = 5120060.

The previous prime is 7680067. The next prime is 7680103. The reversal of 7680093 is 3900867.

It is a happy number.

7680093 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 3900867 = 31300289.

It is a cyclic number.

It is not a de Polignac number, because 7680093 - 213 = 7671901 is a prime.

It is a Curzon number.

7680093 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7680293) 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, 1280013 + ... + 1280018.

It is an arithmetic number, because the mean of its divisors is an integer number (2560032).

Almost surely, 27680093 is an apocalyptic number.

It is an amenable number.

7680093 is a deficient number, since it is larger than the sum of its proper divisors (2560035).

7680093 is a wasteful number, since it uses less digits than its factorization.

7680093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560034.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7680093 is about 2771.2980713016. The cubic root of 7680093 is about 197.2977623242.

The spelling of 7680093 in words is "seven million, six hundred eighty thousand, ninety-three".

Divisors: 1 3 2560031 7680093