Search a number
-
+
208119389 = 1771172427
BaseRepresentation
bin11000110011110…
…10011001011101
3112111121120010112
430121322121131
5411234310024
632352415405
75104662032
oct1431723135
9474546115
10208119389
11a75291a5
1259847565
133416ab8a
141d8d7389
151341000e
hexc67a65d

208119389 has 8 divisors (see below), whose sum is σ = 223466688. Its totient is φ = 193117120.

The previous prime is 208119377. The next prime is 208119391. The reversal of 208119389 is 983911802.

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-208119389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208110389) 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, 85007 + ... + 87420.

It is an arithmetic number, because the mean of its divisors is an integer number (27933336).

Almost surely, 2208119389 is an apocalyptic number.

It is an amenable number.

208119389 is a deficient number, since it is larger than the sum of its proper divisors (15347299).

208119389 is a wasteful number, since it uses less digits than its factorization.

208119389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172515.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 208119389 is about 14426.3435769428. The cubic root of 208119389 is about 592.6125540000.

The spelling of 208119389 in words is "two hundred eight million, one hundred nineteen thousand, three hundred eighty-nine".

Divisors: 1 17 71 1207 172427 2931259 12242317 208119389