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689396 = 221947193
BaseRepresentation
bin10101000010011110100
31022000200012
42220103310
5134030041
622435352
75600621
oct2502364
91260605
10689396
11430a54
12292b58
131b1a36
1413d348
15d93eb
hexa84f4

689396 has 24 divisors (see below), whose sum is σ = 1303680. Its totient is φ = 317952.

The previous prime is 689393. The next prime is 689411. The reversal of 689396 is 693986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3476 + ... + 3668.

It is an arithmetic number, because the mean of its divisors is an integer number (54320).

2689396 is an apocalyptic number.

It is an amenable number.

689396 is a deficient number, since it is larger than the sum of its proper divisors (614284).

689396 is a wasteful number, since it uses less digits than its factorization.

689396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 689396 is about 830.2987414178. The cubic root of 689396 is about 88.3397677367.

The spelling of 689396 in words is "six hundred eighty-nine thousand, three hundred ninety-six".

Divisors: 1 2 4 19 38 47 76 94 188 193 386 772 893 1786 3572 3667 7334 9071 14668 18142 36284 172349 344698 689396