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23171080463 = 231007438281
BaseRepresentation
bin10101100101000110…
…101010000100001111
32012210211110211212022
4111211012222010033
5334423244033323
614351124400355
71450125635306
oct254506520417
965724424768
1023171080463
11991051a783
1245a7b460bb
13225365c1cb
14119b50343d
159093554c8
hex5651aa10f

23171080463 has 4 divisors (see below), whose sum is σ = 24178518768. Its totient is φ = 22163642160.

The previous prime is 23171080459. The next prime is 23171080477. The reversal of 23171080463 is 36408017132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23171080463 - 22 = 23171080459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23171070463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503719118 + ... + 503719163.

It is an arithmetic number, because the mean of its divisors is an integer number (6044629692).

Almost surely, 223171080463 is an apocalyptic number.

23171080463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23171080463 is a deficient number, since it is larger than the sum of its proper divisors (1007438305).

23171080463 is a wasteful number, since it uses less digits than its factorization.

23171080463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007438304.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 23171080463 its reverse (36408017132), we get a palindrome (59579097595).

The spelling of 23171080463 in words is "twenty-three billion, one hundred seventy-one million, eighty thousand, four hundred sixty-three".

Divisors: 1 23 1007438281 23171080463