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23225143 = 29839649
BaseRepresentation
bin101100010011…
…0001100110111
31121200221220111
41120212030313
521421201033
62145443451
7401260534
oct130461467
947627814
1023225143
1112123437
127940587
134a723b6
143127d8b
15208b7cd
hex1626337

23225143 has 8 divisors (see below), whose sum is σ = 24318000. Its totient is φ = 22151808.

The previous prime is 23225129. The next prime is 23225149. The reversal of 23225143 is 34152232.

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-23225143 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 (23225149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418 + ... + 7231.

It is an arithmetic number, because the mean of its divisors is an integer number (3039750).

Almost surely, 223225143 is an apocalyptic number.

23225143 is a deficient number, since it is larger than the sum of its proper divisors (1092857).

23225143 is an equidigital number, since it uses as much as digits as its factorization.

23225143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761.

The product of its digits is 1440, while the sum is 22.

The square root of 23225143 is about 4819.2471403737. The cubic root of 23225143 is about 285.3116238481.

Adding to 23225143 its reverse (34152232), we get a palindrome (57377375).

The spelling of 23225143 in words is "twenty-three million, two hundred twenty-five thousand, one hundred forty-three".

Divisors: 1 29 83 2407 9649 279821 800867 23225143