Search a number
-
+
64085 = 571831
BaseRepresentation
bin1111101001010101
310020220112
433221111
54022320
61212405
7354560
oct175125
9106815
1064085
114416a
1231105
1323228
14194d7
1513ec5
hexfa55

64085 has 8 divisors (see below), whose sum is σ = 87936. Its totient is φ = 43920.

The previous prime is 64081. The next prime is 64091. The reversal of 64085 is 58046.

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

It is not a de Polignac number, because 64085 - 22 = 64081 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 64085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64081) 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, 881 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (10992).

264085 is an apocalyptic number.

It is an amenable number.

64085 is a deficient number, since it is larger than the sum of its proper divisors (23851).

64085 is a wasteful number, since it uses less digits than its factorization.

64085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 64085 is about 253.1501530713. The cubic root of 64085 is about 40.0177004995.

The spelling of 64085 in words is "sixty-four thousand, eighty-five".

Divisors: 1 5 7 35 1831 9155 12817 64085