Search a number
-
+
7423423 = 74192531
BaseRepresentation
bin11100010100010110111111
3111222011000121
4130110112333
53400022143
6423035411
7120045430
oct34242677
914864017
107423423
114210367
12259bb67
1316cbb77
14db3487
159b97ed
hex7145bf

7423423 has 8 divisors (see below), whose sum is σ = 8507520. Its totient is φ = 6345240.

The previous prime is 7423417. The next prime is 7423453. The reversal of 7423423 is 3243247.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7423423 is a prime.

It is a d-powerful number, because it can be written as 75 + 4 + 219 + 37 + 42 + 221 + 314 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7423453) 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, 1668 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (1063440).

Almost surely, 27423423 is an apocalyptic number.

7423423 is a deficient number, since it is larger than the sum of its proper divisors (1084097).

7423423 is a wasteful number, since it uses less digits than its factorization.

7423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its digits is 4032, while the sum is 25.

The square root of 7423423 is about 2724.5959333450. The cubic root of 7423423 is about 195.0749043817.

The spelling of 7423423 in words is "seven million, four hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 7 419 2531 2933 17717 1060489 7423423