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689225312 = 25109197599
BaseRepresentation
bin101001000101001…
…011111001100000
31210000220021101102
4221011023321200
52402420202222
6152220253532
723036214146
oct5105137140
91700807342
10689225312
113240601a6
121729a12a8
13aca39039
1467771596
1540794d92
hex2914be60

689225312 has 24 divisors (see below), whose sum is σ = 1369368000. Its totient is φ = 341449344.

The previous prime is 689225267. The next prime is 689225333. The reversal of 689225312 is 213522986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95312 + ... + 102287.

It is an arithmetic number, because the mean of its divisors is an integer number (57057000).

Almost surely, 2689225312 is an apocalyptic number.

It is an amenable number.

689225312 is a deficient number, since it is larger than the sum of its proper divisors (680142688).

689225312 is a wasteful number, since it uses less digits than its factorization.

689225312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197718 (or 197710 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 689225312 is about 26253.1009977869. The cubic root of 689225312 is about 883.3247643487.

The spelling of 689225312 in words is "six hundred eighty-nine million, two hundred twenty-five thousand, three hundred twelve".

Divisors: 1 2 4 8 16 32 109 218 436 872 1744 3488 197599 395198 790396 1580792 3161584 6323168 21538291 43076582 86153164 172306328 344612656 689225312