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23313143 = 711329473
BaseRepresentation
bin101100011101…
…1101011110111
31121212102121202
41120323223313
521432010033
62151403115
7402105230
oct130735367
947772552
1023313143
1112183567
12798349b
134aa3479
14314c087
1520a78e8
hex163baf7

23313143 has 8 divisors (see below), whose sum is σ = 26880288. Its totient is φ = 19805184.

The previous prime is 23313113. The next prime is 23313149. The reversal of 23313143 is 34131332.

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

It is not a de Polignac number, because 23313143 - 26 = 23313079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313149) 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, 13946 + ... + 15527.

It is an arithmetic number, because the mean of its divisors is an integer number (3360036).

Almost surely, 223313143 is an apocalyptic number.

23313143 is a deficient number, since it is larger than the sum of its proper divisors (3567145).

23313143 is a wasteful number, since it uses less digits than its factorization.

23313143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29593.

The product of its digits is 648, while the sum is 20.

The square root of 23313143 is about 4828.3685650538. The cubic root of 23313143 is about 285.6715179914.

Adding to 23313143 its reverse (34131332), we get a palindrome (57444475).

The spelling of 23313143 in words is "twenty-three million, three hundred thirteen thousand, one hundred forty-three".

Divisors: 1 7 113 791 29473 206311 3330449 23313143