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680046 = 23113341
BaseRepresentation
bin10100110000001101110
31021112211220
42212001232
5133230141
622324210
75531433
oct2460156
91245756
10680046
11424a24
12289666
131aa6c3
14139b8a
15d6766
hexa606e

680046 has 8 divisors (see below), whose sum is σ = 1360104. Its totient is φ = 226680.

The previous prime is 680039. The next prime is 680059. The reversal of 680046 is 640086.

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

680046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 679998 and 680025.

It is a congruent number.

It is an unprimeable number.

680046 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 3 ways as a sum of consecutive naturals, for example, 56665 + ... + 56676.

It is an arithmetic number, because the mean of its divisors is an integer number (170013).

2680046 is an apocalyptic number.

680046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

680046 is a wasteful number, since it uses less digits than its factorization.

680046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113346.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 680046 is about 824.6490162487. The cubic root of 680046 is about 87.9385762824.

The spelling of 680046 in words is "six hundred eighty thousand, forty-six".

Divisors: 1 2 3 6 113341 226682 340023 680046