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23230065 = 351981509
BaseRepresentation
bin101100010011…
…1011001110001
31121201012122210
41120213121301
521421330230
62145522333
7401311065
oct130473161
947635583
1023230065
1112127101
1279433a9
134a74701
143129aa5
15208ceb0
hex1627671

23230065 has 16 divisors (see below), whose sum is σ = 39124800. Its totient is φ = 11737152.

The previous prime is 23230061. The next prime is 23230087. The reversal of 23230065 is 56003232.

It is not a de Polignac number, because 23230065 - 22 = 23230061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23230061) 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 15 ways as a sum of consecutive naturals, for example, 40470 + ... + 41039.

It is an arithmetic number, because the mean of its divisors is an integer number (2445300).

Almost surely, 223230065 is an apocalyptic number.

It is an amenable number.

23230065 is a deficient number, since it is larger than the sum of its proper divisors (15894735).

23230065 is a wasteful number, since it uses less digits than its factorization.

23230065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81536.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23230065 is about 4819.7577739965. The cubic root of 23230065 is about 285.3317773605.

Adding to 23230065 its reverse (56003232), we get a palindrome (79233297).

The spelling of 23230065 in words is "twenty-three million, two hundred thirty thousand, sixty-five".

Divisors: 1 3 5 15 19 57 95 285 81509 244527 407545 1222635 1548671 4646013 7743355 23230065