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23205066 = 236615851
BaseRepresentation
bin101100010000…
…1010011001010
31121122221100220
41120201103022
521420030231
62145210510
7401145153
oct130412312
947587326
1023205066
111210a345
127930a36
134a66211
14312092a
152085896
hex16214ca

23205066 has 16 divisors (see below), whose sum is σ = 46488288. Its totient is φ = 7722000.

The previous prime is 23205011. The next prime is 23205067. The reversal of 23205066 is 66050232.

It is not an unprimeable number, because it can be changed into a prime (23205067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (2905518).

Almost surely, 223205066 is an apocalyptic number.

23205066 is an abundant number, since it is smaller than the sum of its proper divisors (23283222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23205066 is a wasteful number, since it uses less digits than its factorization.

23205066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23205066 is about 4817.1636883129. The cubic root of 23205066 is about 285.2293874998.

Adding to 23205066 its reverse (66050232), we get a palindrome (89255298).

The spelling of 23205066 in words is "twenty-three million, two hundred five thousand, sixty-six".

Divisors: 1 2 3 6 661 1322 1983 3966 5851 11702 17553 35106 3867511 7735022 11602533 23205066