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23143323 = 371102063
BaseRepresentation
bin101100001001…
…0001110011011
31121112210200010
41120102032123
521411041243
62144013003
7400500150
oct130221633
947483603
1023143323
1112077a15
127901163
134a44098
143106227
152072433
hex161239b

23143323 has 8 divisors (see below), whose sum is σ = 35266048. Its totient is φ = 13224744.

The previous prime is 23143321. The next prime is 23143333. The reversal of 23143323 is 32334132.

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

It is not a de Polignac number, because 23143323 - 21 = 23143321 is a prime.

It is a super-2 number, since 2×231433232 = 1071226798964658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1102063 = 23143323 / (2 + 3 + 1 + 4 + 3 + 3 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23143323.

It is not an unprimeable number, because it can be changed into a prime (23143321) 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, 551011 + ... + 551052.

It is an arithmetic number, because the mean of its divisors is an integer number (4408256).

Almost surely, 223143323 is an apocalyptic number.

23143323 is a deficient number, since it is larger than the sum of its proper divisors (12122725).

23143323 is a wasteful number, since it uses less digits than its factorization.

23143323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102073.

The product of its digits is 1296, while the sum is 21.

The square root of 23143323 is about 4810.7507730083. The cubic root of 23143323 is about 284.9761876073.

Adding to 23143323 its reverse (32334132), we get a palindrome (55477455).

The spelling of 23143323 in words is "twenty-three million, one hundred forty-three thousand, three hundred twenty-three".

Divisors: 1 3 7 21 1102063 3306189 7714441 23143323