Search a number
-
+
189688602 = 2373433079
BaseRepresentation
bin10110100111001…
…10101100011010
3111012221011211210
423103212230122
5342030013402
630453403550
74462216665
oct1323465432
9435834753
10189688602
119808a944
12536395b6
13303b6a9c
141b29a6dc
15119be06c
hexb4e6b1a

189688602 has 16 divisors (see below), whose sum is σ = 384575040. Its totient is φ = 62363232.

The previous prime is 189688579. The next prime is 189688607. The reversal of 189688602 is 206886981.

It is not an unprimeable number, because it can be changed into a prime (189688607) 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, 216102 + ... + 216977.

It is an arithmetic number, because the mean of its divisors is an integer number (24035940).

Almost surely, 2189688602 is an apocalyptic number.

189688602 is an abundant number, since it is smaller than the sum of its proper divisors (194886438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189688602 is a wasteful number, since it uses less digits than its factorization.

189688602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433157.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 189688602 is about 13772.7485274363. The cubic root of 189688602 is about 574.5754668507.

The spelling of 189688602 in words is "one hundred eighty-nine million, six hundred eighty-eight thousand, six hundred two".

Divisors: 1 2 3 6 73 146 219 438 433079 866158 1299237 2598474 31614767 63229534 94844301 189688602