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689348 = 221115667
BaseRepresentation
bin10101000010011000100
31022000121102
42220103010
5134024343
622435232
75600522
oct2502304
91260542
10689348
11430a10
12292b18
131b19ca
1413d312
15d93b8
hexa84c4

689348 has 12 divisors (see below), whose sum is σ = 1316112. Its totient is φ = 313320.

The previous prime is 689341. The next prime is 689357. The reversal of 689348 is 843986.

It is not an unprimeable number, because it can be changed into a prime (689341) by changing a digit.

689348 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 3 ways as a sum of consecutive naturals, for example, 7790 + ... + 7877.

It is an arithmetic number, because the mean of its divisors is an integer number (109676).

2689348 is an apocalyptic number.

It is an amenable number.

689348 is a deficient number, since it is larger than the sum of its proper divisors (626764).

689348 is a wasteful number, since it uses less digits than its factorization.

689348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15682 (or 15680 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 689348 is about 830.2698356559. The cubic root of 689348 is about 88.3377174360.

The spelling of 689348 in words is "six hundred eighty-nine thousand, three hundred forty-eight".

Divisors: 1 2 4 11 22 44 15667 31334 62668 172337 344674 689348