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8938951000891 = 2335315798779
BaseRepresentation
bin1000001000010100001011…
…1111111100001100111011
31011122112222212100100100021
42002011002333330030323
52132423432424012031
631002255234351311
71611550352561152
oct202050277741473
934575885310307
108938951000891
112936a9589055a
12100451872b537
134cac29cca992
1422c90cbac599
151077c8d19511
hex82142ffc33b

8938951000891 has 32 divisors (see below), whose sum is σ = 9528674112000. Its totient is φ = 8382706716384.

The previous prime is 8938951000843. The next prime is 8938951000901. The reversal of 8938951000891 is 1980001598398.

8938951000891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-8938951000891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8938951000591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1018215340 + ... + 1018224118.

It is an arithmetic number, because the mean of its divisors is an integer number (297771066000).

Almost surely, 28938951000891 is an apocalyptic number.

8938951000891 is a deficient number, since it is larger than the sum of its proper divisors (589723111109).

8938951000891 is an equidigital number, since it uses as much as digits as its factorization.

8938951000891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480 (or 10434 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 61.

The spelling of 8938951000891 in words is "eight trillion, nine hundred thirty-eight billion, nine hundred fifty-one million, eight hundred ninety-one", and thus it is an aban number.

Divisors: 1 23 53 529 1219 1579 8779 12167 28037 36317 83687 201917 465287 644851 835291 1924801 4644091 10701601 13862041 19211693 44270423 106814093 246136823 318826943 734688173 1018219729 5661146929 7333019689 16897827979 168659452847 388650043517 8938951000891