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47876589887 = 72979199793
BaseRepresentation
bin101100100101101010…
…101100100100111111
311120120121020202112212
4230211222230210333
51241022401334022
633554425251035
73313266204500
oct544552544477
9146517222485
1047876589887
11193390a5665
129341933a7b
13468cb76539
14246270cba7
1513a32563e2
hexb25aac93f

47876589887 has 12 divisors (see below), whose sum is σ = 55699422336. Its totient is φ = 41032474560.

The previous prime is 47876589877. The next prime is 47876589907. The reversal of 47876589887 is 78898567874.

It is not a de Polignac number, because 47876589887 - 230 = 46802848063 is a prime.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47876589877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429863 + ... + 529655.

It is an arithmetic number, because the mean of its divisors is an integer number (4641618528).

Almost surely, 247876589887 is an apocalyptic number.

47876589887 is a deficient number, since it is larger than the sum of its proper divisors (7822832449).

47876589887 is an equidigital number, since it uses as much as digits as its factorization.

47876589887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109598 (or 109591 counting only the distinct ones).

The product of its digits is 1517322240, while the sum is 77.

The spelling of 47876589887 in words is "forty-seven billion, eight hundred seventy-six million, five hundred eighty-nine thousand, eight hundred eighty-seven".

Divisors: 1 7 49 9791 68537 99793 479759 698551 4889857 977073263 6839512841 47876589887