Search a number
-
+
680307 = 3226769
BaseRepresentation
bin10100110000101110011
31021120012120
42212011303
5133232212
622325323
75532255
oct2460563
91246176
10680307
11425141
12289843
131aa864
14139cd5
15d688c
hexa6173

680307 has 4 divisors (see below), whose sum is σ = 907080. Its totient is φ = 453536.

The previous prime is 680299. The next prime is 680321. The reversal of 680307 is 703086.

680307 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 680307 - 23 = 680299 is a prime.

It is a super-2 number, since 2×6803072 = 925635228498, which contains 22 as substring.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680307.

It is not an unprimeable number, because it can be changed into a prime (680327) 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, 113382 + ... + 113387.

It is an arithmetic number, because the mean of its divisors is an integer number (226770).

2680307 is an apocalyptic number.

680307 is a deficient number, since it is larger than the sum of its proper divisors (226773).

680307 is a wasteful number, since it uses less digits than its factorization.

680307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226772.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 680307 is about 824.8072502106. The cubic root of 680307 is about 87.9498250473.

The spelling of 680307 in words is "six hundred eighty thousand, three hundred seven".

Divisors: 1 3 226769 680307