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28858715888873 = 136733132854063
BaseRepresentation
bin1101000111111001100011…
…00000100101110011101001
310210011212101112021211221112
412203330301200211303221
512240310122231420443
6141213302215520105
76035654611454513
oct643746140456351
9123155345254845
1028858715888873
119216a04857362
1232a1019689035
13131449954a870
1471aaaad6cbb3
15350a34c3db18
hex1a3f31825ce9

28858715888873 has 8 divisors (see below), whose sum is σ = 31542477068928. Its totient is φ = 26241220417104.

The previous prime is 28858715888851. The next prime is 28858715888887. The reversal of 28858715888873 is 37888851785882.

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

It is a cyclic number.

It is not a de Polignac number, because 28858715888873 - 28 = 28858715888617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28858715887873) 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 7 ways as a sum of consecutive naturals, for example, 16566426161 + ... + 16566427902.

It is an arithmetic number, because the mean of its divisors is an integer number (3942809633616).

Almost surely, 228858715888873 is an apocalyptic number.

It is an amenable number.

28858715888873 is a deficient number, since it is larger than the sum of its proper divisors (2683761180055).

28858715888873 is a wasteful number, since it uses less digits than its factorization.

28858715888873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33132854143.

The product of its digits is 15414067200, while the sum is 86.

The spelling of 28858715888873 in words is "twenty-eight trillion, eight hundred fifty-eight billion, seven hundred fifteen million, eight hundred eighty-eight thousand, eight hundred seventy-three".

Divisors: 1 13 67 871 33132854063 430727102819 2219901222221 28858715888873