Search a number
-
+
8423031 = 310327259
BaseRepresentation
bin100000001000…
…011001110111
3120211221020010
4200020121313
54124014111
6500311303
7131410641
oct40103167
916757203
108423031
114833391
1229a2533
13198bb56
141193891
15b15aa6
hex808677

8423031 has 8 divisors (see below), whose sum is σ = 11340160. Its totient is φ = 5560632.

The previous prime is 8423029. The next prime is 8423057. The reversal of 8423031 is 1303248.

It is a happy number.

8423031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8423031 - 21 = 8423029 is a prime.

It is a super-2 number, since 2×84230312 = 141894902453922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8422989 and 8423007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423071) 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, 13321 + ... + 13938.

It is an arithmetic number, because the mean of its divisors is an integer number (1417520).

Almost surely, 28423031 is an apocalyptic number.

8423031 is a deficient number, since it is larger than the sum of its proper divisors (2917129).

8423031 is a wasteful number, since it uses less digits than its factorization.

8423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27365.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 8423031 is about 2902.2458545065. The cubic root of 8423031 is about 203.4648845631.

Adding to 8423031 its reverse (1303248), we get a palindrome (9726279).

The spelling of 8423031 in words is "eight million, four hundred twenty-three thousand, thirty-one".

Divisors: 1 3 103 309 27259 81777 2807677 8423031