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689046 = 23412801
BaseRepresentation
bin10101000001110010110
31022000012020
42220032112
5134022141
622434010
75566611
oct2501626
91260166
10689046
11430766
12292906
131b1827
1413d178
15d9266
hexa8396

689046 has 16 divisors (see below), whose sum is σ = 1412208. Its totient is φ = 224000.

The previous prime is 689041. The next prime is 689063. The reversal of 689046 is 640986.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 688998 and 689016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689041) by changing a digit.

689046 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, 1155 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (88263).

2689046 is an apocalyptic number.

689046 is an abundant number, since it is smaller than the sum of its proper divisors (723162).

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

689046 is a wasteful number, since it uses less digits than its factorization.

689046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 689046 is about 830.0879471478. The cubic root of 689046 is about 88.3248154438.

The spelling of 689046 in words is "six hundred eighty-nine thousand, forty-six".

Divisors: 1 2 3 6 41 82 123 246 2801 5602 8403 16806 114841 229682 344523 689046