Search a number
-
+
23453143 = 731108079
BaseRepresentation
bin101100101110…
…1110111010111
31122010112122221
41121131313113
522001000033
62154403211
7403230340
oct131356727
948115587
1023453143
111226976a
127a30507
134b220cc
1431870c7
1520d412d
hex165ddd7

23453143 has 8 divisors (see below), whose sum is σ = 27668480. Its totient is φ = 19454040.

The previous prime is 23453137. The next prime is 23453147. The reversal of 23453143 is 34135432.

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 23453143 - 213 = 23444951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23453147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53823 + ... + 54256.

It is an arithmetic number, because the mean of its divisors is an integer number (3458560).

Almost surely, 223453143 is an apocalyptic number.

23453143 is a deficient number, since it is larger than the sum of its proper divisors (4215337).

23453143 is a wasteful number, since it uses less digits than its factorization.

23453143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108117.

The product of its digits is 4320, while the sum is 25.

The square root of 23453143 is about 4842.8445153649. The cubic root of 23453143 is about 286.2422149761.

Adding to 23453143 its reverse (34135432), we get a palindrome (57588575).

The spelling of 23453143 in words is "twenty-three million, four hundred fifty-three thousand, one hundred forty-three".

Divisors: 1 7 31 217 108079 756553 3350449 23453143