Search a number
-
+
85988671 = 677317581
BaseRepresentation
bin1010010000000…
…01010100111111
312222210200021121
411020001110333
5134003114141
612311011411
72062614556
oct510012477
9188720247
1085988671
11445a161a
1224969b67
1314a79192
14b5c4d9d
1578381d1
hex520153f

85988671 has 8 divisors (see below), whose sum is σ = 88472624. Its totient is φ = 83540160.

The previous prime is 85988659. The next prime is 85988681. The reversal of 85988671 is 17688958.

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 85988671 - 27 = 85988543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85988681) 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, 3900 + ... + 13681.

It is an arithmetic number, because the mean of its divisors is an integer number (11059078).

Almost surely, 285988671 is an apocalyptic number.

85988671 is a deficient number, since it is larger than the sum of its proper divisors (2483953).

85988671 is a wasteful number, since it uses less digits than its factorization.

85988671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17721.

The product of its digits is 967680, while the sum is 52.

The square root of 85988671 is about 9273.0076566344. The cubic root of 85988671 is about 441.3811131209.

The spelling of 85988671 in words is "eighty-five million, nine hundred eighty-eight thousand, six hundred seventy-one".

Divisors: 1 67 73 4891 17581 1177927 1283413 85988671