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23431343644361 = 136271719479243
BaseRepresentation
bin1010101001111100010001…
…11010100001111011001001
310001222000101121220021000202
411110332020322201323021
511032344342433104421
6121500113300541545
74635600352533242
oct524761072417311
9101860347807022
1023431343644361
1175141a46a7024
1227651996b18b5
13100c748cc35a3
145b0123da3cc9
152a9782a5e10b
hex154f88ea1ec9

23431343644361 has 4 divisors (see below), whose sum is σ = 23433063137232. Its totient is φ = 23429624151492.

The previous prime is 23431343644337. The next prime is 23431343644369. The reversal of 23431343644361 is 16344634313432.

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 23431343644361 - 214 = 23431343627977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23431343644369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859725995 + ... + 859753248.

It is an arithmetic number, because the mean of its divisors is an integer number (5858265784308).

Almost surely, 223431343644361 is an apocalyptic number.

It is an amenable number.

23431343644361 is a deficient number, since it is larger than the sum of its proper divisors (1719492871).

23431343644361 is a wasteful number, since it uses less digits than its factorization.

23431343644361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719492870.

The product of its digits is 4478976, while the sum is 47.

Adding to 23431343644361 its reverse (16344634313432), we get a palindrome (39775977957793).

The spelling of 23431343644361 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred forty-three million, six hundred forty-four thousand, three hundred sixty-one".

Divisors: 1 13627 1719479243 23431343644361