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680036 = 227149163
BaseRepresentation
bin10100110000001100100
31021112211112
42212001210
5133230121
622324152
75531420
oct2460144
91245745
10680036
11424a15
12289658
131aa6b6
14139b80
15d675b
hexa6064

680036 has 24 divisors (see below), whose sum is σ = 1377600. Its totient is φ = 287712.

The previous prime is 680027. The next prime is 680039. The reversal of 680036 is 630086.

It is a super-2 number, since 2×6800362 = 924897922592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679993 and 680020.

It is not an unprimeable number, because it can be changed into a prime (680039) by changing a digit.

680036 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4091 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (57400).

2680036 is an apocalyptic number.

It is an amenable number.

680036 is an abundant number, since it is smaller than the sum of its proper divisors (697564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680036 is a wasteful number, since it uses less digits than its factorization.

680036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 680036 is about 824.6429530409. The cubic root of 680036 is about 87.9381452380.

The spelling of 680036 in words is "six hundred eighty thousand, thirty-six".

Divisors: 1 2 4 7 14 28 149 163 298 326 596 652 1043 1141 2086 2282 4172 4564 24287 48574 97148 170009 340018 680036