Search a number
-
+
165855738 = 2327642623
BaseRepresentation
bin10011110001011…
…00000111111010
3102120002100022010
421320230013322
5314424340423
624242510350
74052515266
oct1170540772
9376070263
10165855738
1185691964
12476653b6
1328490bb9
14180550a6
15e862693
hex9e2c1fa

165855738 has 8 divisors (see below), whose sum is σ = 331711488. Its totient is φ = 55285244.

The previous prime is 165855733. The next prime is 165855751. The reversal of 165855738 is 837558561.

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

165855738 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (165855733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13821306 + ... + 13821317.

It is an arithmetic number, because the mean of its divisors is an integer number (41463936).

Almost surely, 2165855738 is an apocalyptic number.

165855738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

165855738 is a wasteful number, since it uses less digits than its factorization.

165855738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27642628.

The product of its digits is 1008000, while the sum is 48.

The square root of 165855738 is about 12878.4990585083. The cubic root of 165855738 is about 549.4272141597.

The spelling of 165855738 in words is "one hundred sixty-five million, eight hundred fifty-five thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 27642623 55285246 82927869 165855738