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23205633 = 3111395059
BaseRepresentation
bin101100010000…
…1011100000001
31121122222010220
41120201130001
521420040013
62145213253
7401146623
oct130413401
947588126
1023205633
111210a810
127931229
134a66559
143120c13
152085b23
hex1621701

23205633 has 16 divisors (see below), whose sum is σ = 34003200. Its totient is φ = 13960080.

The previous prime is 23205619. The next prime is 23205641. The reversal of 23205633 is 33650232.

It is not a de Polignac number, because 23205633 - 213 = 23197441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23205613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2058 + ... + 7116.

It is an arithmetic number, because the mean of its divisors is an integer number (2125200).

Almost surely, 223205633 is an apocalyptic number.

It is an amenable number.

23205633 is a deficient number, since it is larger than the sum of its proper divisors (10797567).

23205633 is a wasteful number, since it uses less digits than its factorization.

23205633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 23205633 is about 4817.2225400120. Note that the first 3 decimals coincide. The cubic root of 23205633 is about 285.2317106095.

Adding to 23205633 its reverse (33650232), we get a palindrome (56855865).

The spelling of 23205633 in words is "twenty-three million, two hundred five thousand, six hundred thirty-three".

Divisors: 1 3 11 33 139 417 1529 4587 5059 15177 55649 166947 703201 2109603 7735211 23205633