Search a number
-
+
85686411 = 3139205483
BaseRepresentation
bin1010001101101…
…11100010001011
312222020022122210
411012313202023
5133413431121
612300320203
72060215416
oct506674213
9188208583
1085686411
1144405518
1224843063
13149a1725
14b546b7d
1577c8876
hex51b788b

85686411 has 8 divisors (see below), whose sum is σ = 115071040. Its totient is φ = 56713032.

The previous prime is 85686397. The next prime is 85686427. The reversal of 85686411 is 11468658.

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

It is not a de Polignac number, because 85686411 - 25 = 85686379 is a prime.

It is a super-2 number, since 2×856864112 = 14684322060121842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85686411.

It is not an unprimeable number, because it can be changed into a prime (85616411) 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, 102325 + ... + 103158.

It is an arithmetic number, because the mean of its divisors is an integer number (14383880).

Almost surely, 285686411 is an apocalyptic number.

85686411 is a deficient number, since it is larger than the sum of its proper divisors (29384629).

85686411 is a wasteful number, since it uses less digits than its factorization.

85686411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205625.

The product of its digits is 46080, while the sum is 39.

The square root of 85686411 is about 9256.6954686864. The cubic root of 85686411 is about 440.8633376241.

The spelling of 85686411 in words is "eighty-five million, six hundred eighty-six thousand, four hundred eleven".

Divisors: 1 3 139 417 205483 616449 28562137 85686411