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689204 = 22434007
BaseRepresentation
bin10101000010000110100
31022000102002
42220100310
5134023304
622434432
75600225
oct2502064
91260362
10689204
1143089a
12292a18
131b1919
1413d24c
15d931e
hexa8434

689204 has 12 divisors (see below), whose sum is σ = 1234464. Its totient is φ = 336504.

The previous prime is 689201. The next prime is 689219. The reversal of 689204 is 402986.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689204.

It is not an unprimeable number, because it can be changed into a prime (689201) by changing a digit.

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, 1832 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (102872).

2689204 is an apocalyptic number.

It is an amenable number.

689204 is a deficient number, since it is larger than the sum of its proper divisors (545260).

689204 is a wasteful number, since it uses less digits than its factorization.

689204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054 (or 4052 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 689204 is about 830.1831123312. The cubic root of 689204 is about 88.3315659628.

The spelling of 689204 in words is "six hundred eighty-nine thousand, two hundred four".

Divisors: 1 2 4 43 86 172 4007 8014 16028 172301 344602 689204