Search a number
-
+
85238671 = 712839491
BaseRepresentation
bin1010001010010…
…10001110001111
312221101120110211
411011022032033
5133310114141
612242543251
72053342150
oct505121617
9187346424
1085238671
114412a091
1224667b27
13148759ab
14b46b927
15773ad81
hex514a38f

85238671 has 8 divisors (see below), whose sum is σ = 97501824. Its totient is φ = 72997080.

The previous prime is 85238651. The next prime is 85238701. The reversal of 85238671 is 17683258.

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 85238671 - 29 = 85238159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85238641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4236 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (12187728).

Almost surely, 285238671 is an apocalyptic number.

85238671 is a deficient number, since it is larger than the sum of its proper divisors (12263153).

85238671 is a wasteful number, since it uses less digits than its factorization.

85238671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10781.

The product of its digits is 80640, while the sum is 40.

The square root of 85238671 is about 9232.4791361801. The cubic root of 85238671 is about 440.0941103792.

The spelling of 85238671 in words is "eighty-five million, two hundred thirty-eight thousand, six hundred seventy-one".

Divisors: 1 7 1283 8981 9491 66437 12176953 85238671