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23225789 = 31749219
BaseRepresentation
bin101100010011…
…0010110111101
31121200222210102
41120212112331
521421211124
62145450445
7401262446
oct130462675
947628712
1023225789
1112123974
127940a25
134a72792
1431282cd
15208baae
hex16265bd

23225789 has 4 divisors (see below), whose sum is σ = 23975040. Its totient is φ = 22476540.

The previous prime is 23225767. The next prime is 23225827. The reversal of 23225789 is 98752232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23225789 - 28 = 23225533 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 (23225749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374579 + ... + 374640.

It is an arithmetic number, because the mean of its divisors is an integer number (5993760).

Almost surely, 223225789 is an apocalyptic number.

It is an amenable number.

23225789 is a deficient number, since it is larger than the sum of its proper divisors (749251).

23225789 is an equidigital number, since it uses as much as digits as its factorization.

23225789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749250.

The product of its digits is 60480, while the sum is 38.

The square root of 23225789 is about 4819.3141628244. The cubic root of 23225789 is about 285.3142691077.

The spelling of 23225789 in words is "twenty-three million, two hundred twenty-five thousand, seven hundred eighty-nine".

Divisors: 1 31 749219 23225789