Search a number
-
+
831027 = 3439631
BaseRepresentation
bin11001010111000110011
31120012221210
43022320303
5203043102
625451203
710030551
oct3127063
91505853
10831027
115183aa
12340b03
13231342
14178bd1
1511636c
hexcae33

831027 has 8 divisors (see below), whose sum is σ = 1112320. Its totient is φ = 551880.

The previous prime is 831023. The next prime is 831031. The reversal of 831027 is 720138.

It is an interprime number because it is at equal distance from previous prime (831023) and next prime (831031).

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

It is not a de Polignac number, because 831027 - 22 = 831023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 830994 and 831012.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 831027.

It is not an unprimeable number, because it can be changed into a prime (831023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (139040).

2831027 is an apocalyptic number.

831027 is a deficient number, since it is larger than the sum of its proper divisors (281293).

831027 is a wasteful number, since it uses less digits than its factorization.

831027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 831027 is about 911.6068231425. The cubic root of 831027 is about 94.0167089657.

Subtracting from 831027 its reverse (720138), we obtain a square (110889 = 3332).

The spelling of 831027 in words is "eight hundred thirty-one thousand, twenty-seven".

Divisors: 1 3 439 631 1317 1893 277009 831027