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689213203 = 7367726777
BaseRepresentation
bin101001000101001…
…000111100010011
31210000212122202221
4221011020330103
52402414310303
6152220121511
723036133640
oct5105107423
91700778687
10689213203
11324052098
12172996297
13aca33683
146776adc7
15407914bd
hex29148f13

689213203 has 8 divisors (see below), whose sum is σ = 787915872. Its totient is φ = 590571456.

The previous prime is 689213183. The next prime is 689213207. The reversal of 689213203 is 302312986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-689213203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689213207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12351 + ... + 39127.

It is an arithmetic number, because the mean of its divisors is an integer number (98489484).

Almost surely, 2689213203 is an apocalyptic number.

689213203 is a deficient number, since it is larger than the sum of its proper divisors (98702669).

689213203 is a wasteful number, since it uses less digits than its factorization.

689213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30461.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 689213203 is about 26252.8703763988. The cubic root of 689213203 is about 883.3195912739.

The spelling of 689213203 in words is "six hundred eighty-nine million, two hundred thirteen thousand, two hundred three".

Divisors: 1 7 3677 25739 26777 187439 98459029 689213203