Search a number
-
+
216075189 = 3116547733
BaseRepresentation
bin11001110000100…
…00101110110101
3120001120202102210
430320100232311
5420303401224
633235124033
75232415551
oct1470205665
9501522383
10216075189
11100a72540
1260443619
13359c5155
14209a8861
1513e82429
hexce10bb5

216075189 has 8 divisors (see below), whose sum is σ = 314291232. Its totient is φ = 130954640.

The previous prime is 216075173. The next prime is 216075193. The reversal of 216075189 is 981570612.

216075189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216075189 - 24 = 216075173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216075089) 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, 3273834 + ... + 3273899.

It is an arithmetic number, because the mean of its divisors is an integer number (39286404).

Almost surely, 2216075189 is an apocalyptic number.

It is an amenable number.

216075189 is a deficient number, since it is larger than the sum of its proper divisors (98216043).

216075189 is a wasteful number, since it uses less digits than its factorization.

216075189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547747.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 216075189 is about 14699.4962158572. The cubic root of 216075189 is about 600.0696113679.

It can be divided in two parts, 21607 and 5189, that added together give a triangular number (26796 = T231).

The spelling of 216075189 in words is "two hundred sixteen million, seventy-five thousand, one hundred eighty-nine".

Divisors: 1 3 11 33 6547733 19643199 72025063 216075189