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23187877063 = 139718388483
BaseRepresentation
bin10101100110000110…
…101110110011000111
32012212000002012110121
4111212012232303013
5334442044031223
614352524402411
71450421463061
oct254606566307
965760065417
1023187877063
119919a5226a
1245b16a6407
132256c90520
14119d836731
1590aa7215d
hex5661aecc7

23187877063 has 8 divisors (see below), whose sum is σ = 25229000048. Its totient is φ = 21183531264.

The previous prime is 23187877019. The next prime is 23187877067. The reversal of 23187877063 is 36077878132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23187877063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23187877063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23187877067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9192981 + ... + 9195502.

It is an arithmetic number, because the mean of its divisors is an integer number (3153625006).

Almost surely, 223187877063 is an apocalyptic number.

23187877063 is a deficient number, since it is larger than the sum of its proper divisors (2041122985).

23187877063 is a wasteful number, since it uses less digits than its factorization.

23187877063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18388593.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 23187877063 in words is "twenty-three billion, one hundred eighty-seven million, eight hundred seventy-seven thousand, sixty-three".

Divisors: 1 13 97 1261 18388483 239050279 1783682851 23187877063