Search a number
-
+
868465 = 51331431
BaseRepresentation
bin11010100000001110001
31122010022101
43110001301
5210242330
630340401
710244653
oct3240161
91563271
10868465
11543544
1235a701
132453b0
141886d3
151224ca
hexd4071

868465 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 619200.

The previous prime is 868459. The next prime is 868487. The reversal of 868465 is 564868.

It is not a de Polignac number, because 868465 - 27 = 868337 is a prime.

It is a super-3 number, since 3×8684653 = 1965070864891333875, which contains 333 as substring.

It is a Duffinian number.

Its product of digits (46080) is a multiple of the sum of its prime divisors (480).

868465 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800 + ... + 2230.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2868465 is an apocalyptic number.

It is an amenable number.

868465 is a deficient number, since it is larger than the sum of its proper divisors (292751).

868465 is a wasteful number, since it uses less digits than its factorization.

868465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its digits is 46080, while the sum is 37.

The square root of 868465 is about 931.9146956669. The cubic root of 868465 is about 95.4078494890.

The spelling of 868465 in words is "eight hundred sixty-eight thousand, four hundred sixty-five".

Divisors: 1 5 13 31 65 155 403 431 2015 2155 5603 13361 28015 66805 173693 868465