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680007 = 3226669
BaseRepresentation
bin10100110000001000111
31021112210110
42212001013
5133230012
622324103
75531346
oct2460107
91245713
10680007
11424999
12289633
131aa693
14139b5d
15d673c
hexa6047

680007 has 4 divisors (see below), whose sum is σ = 906680. Its totient is φ = 453336.

The previous prime is 680003. The next prime is 680027. The reversal of 680007 is 700086.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 680007 - 22 = 680003 is a prime.

It is a D-number.

It is a Duffinian number.

680007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680003) 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, 113332 + ... + 113337.

It is an arithmetic number, because the mean of its divisors is an integer number (226670).

2680007 is an apocalyptic number.

680007 is a deficient number, since it is larger than the sum of its proper divisors (226673).

680007 is a wasteful number, since it uses less digits than its factorization.

680007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226672.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 680007 is about 824.6253694860. The cubic root of 680007 is about 87.9368951853.

The spelling of 680007 in words is "six hundred eighty thousand, seven".

Divisors: 1 3 226669 680007