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23440165233 = 3171924190057
BaseRepresentation
bin10101110101001001…
…001000100101110001
32020111120210202202220
4111311021020211301
5341001140241413
614433540031253
71456604055102
oct256511104561
966446722686
1023440165233
119a393a9091
124662092529
132297324574
1411c514a3a9
15922ca9223
hex575248971

23440165233 has 16 divisors (see below), whose sum is σ = 34833683520. Its totient is φ = 13933472256.

The previous prime is 23440165187. The next prime is 23440165241. The reversal of 23440165233 is 33256104432.

It is a happy number.

It is not a de Polignac number, because 23440165233 - 29 = 23440164721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23440165194 and 23440165203.

It is not an unprimeable number, because it can be changed into a prime (23440165433) 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, 12094060 + ... + 12095997.

It is an arithmetic number, because the mean of its divisors is an integer number (2177105220).

Almost surely, 223440165233 is an apocalyptic number.

It is an amenable number.

23440165233 is a deficient number, since it is larger than the sum of its proper divisors (11393518287).

23440165233 is a wasteful number, since it uses less digits than its factorization.

23440165233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24190096.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 23440165233 its reverse (33256104432), we get a palindrome (56696269665).

The spelling of 23440165233 in words is "twenty-three billion, four hundred forty million, one hundred sixty-five thousand, two hundred thirty-three".

Divisors: 1 3 17 19 51 57 323 969 24190057 72570171 411230969 459611083 1233692907 1378833249 7813388411 23440165233