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680270 = 25591153
BaseRepresentation
bin10100110000101001110
31021120011012
42212011032
5133232040
622325222
75532203
oct2460516
91246135
10680270
11425108
12289812
131aa836
14139caa
15d6865
hexa614e

680270 has 16 divisors (see below), whose sum is σ = 1246320. Its totient is φ = 267264.

The previous prime is 680263. The next prime is 680291. The reversal of 680270 is 72086.

It is a congruent number.

It is an unprimeable number.

680270 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14 + ... + 1166.

It is an arithmetic number, because the mean of its divisors is an integer number (77895).

2680270 is an apocalyptic number.

680270 is a deficient number, since it is larger than the sum of its proper divisors (566050).

680270 is a wasteful number, since it uses less digits than its factorization.

680270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 680270 is about 824.7848204229. The cubic root of 680270 is about 87.9482305699.

The spelling of 680270 in words is "six hundred eighty thousand, two hundred seventy".

Divisors: 1 2 5 10 59 118 295 590 1153 2306 5765 11530 68027 136054 340135 680270