Search a number
-
+
205112159 = 789329233
BaseRepresentation
bin11000011100111…
…00001101011111
3112021221202222122
430032130031133
5410002042114
632204133155
75040265430
oct1416341537
9467852878
10205112159
11a586488a
12588371bb
1333657155
141d353487
1513018e8e
hexc39c35f

205112159 has 8 divisors (see below), whose sum is σ = 237048480. Its totient is φ = 173834496.

The previous prime is 205112119. The next prime is 205112161. The reversal of 205112159 is 951211502.

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

It is a cyclic number.

It is not a de Polignac number, because 205112159 - 212 = 205108063 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 (205112119) 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, 163994 + ... + 165239.

It is an arithmetic number, because the mean of its divisors is an integer number (29631060).

Almost surely, 2205112159 is an apocalyptic number.

205112159 is a deficient number, since it is larger than the sum of its proper divisors (31936321).

205112159 is an equidigital number, since it uses as much as digits as its factorization.

205112159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329329.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 205112159 is about 14321.7372898682. The cubic root of 205112159 is about 589.7443678551.

The spelling of 205112159 in words is "two hundred five million, one hundred twelve thousand, one hundred fifty-nine".

Divisors: 1 7 89 623 329233 2304631 29301737 205112159