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680002 = 2437907
BaseRepresentation
bin10100110000001000010
31021112210021
42212001002
5133230002
622324054
75531341
oct2460102
91245707
10680002
11424994
1228962a
131aa68b
14139b58
15d6737
hexa6042

680002 has 8 divisors (see below), whose sum is σ = 1043856. Its totient is φ = 332052.

The previous prime is 679999. The next prime is 680003. The reversal of 680002 is 200086.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3868 + ... + 4039.

It is an arithmetic number, because the mean of its divisors is an integer number (130482).

2680002 is an apocalyptic number.

680002 is a deficient number, since it is larger than the sum of its proper divisors (363854).

680002 is a wasteful number, since it uses less digits than its factorization.

680002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 680002 is about 824.6223378008. The cubic root of 680002 is about 87.9366796554.

Adding to 680002 its reverse (200086), we get a palindrome (880088).

It can be divided in two parts, 6 and 80002, that added together give a palindrome (80008).

The spelling of 680002 in words is "six hundred eighty thousand, two".

Divisors: 1 2 43 86 7907 15814 340001 680002