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28897679882 = 2311213384247
BaseRepresentation
bin11010111010011011…
…111001101000001010
32202120221002020110002
4122322123321220022
5433140301224012
621135253323002
72042053140401
oct327233715012
982527066402
1028897679882
1111289a94675
125725936462
132956bb1386
141581ca4638
15b41e857c2
hex6ba6f9a0a

28897679882 has 16 divisors (see below), whose sum is σ = 44781798912. Its totient is φ = 13971184560.

The previous prime is 28897679873. The next prime is 28897679893.

28897679882 is nontrivially palindromic in base 10.

28897679882 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 116918 + ... + 267329.

It is an arithmetic number, because the mean of its divisors is an integer number (2798862432).

Almost surely, 228897679882 is an apocalyptic number.

28897679882 is a deficient number, since it is larger than the sum of its proper divisors (15884119030).

28897679882 is a wasteful number, since it uses less digits than its factorization.

28897679882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385493.

The product of its digits is 390168576, while the sum is 74.

The spelling of 28897679882 in words is "twenty-eight billion, eight hundred ninety-seven million, six hundred seventy-nine thousand, eight hundred eighty-two".

Divisors: 1 2 31 62 1213 2426 37603 75206 384247 768494 11911657 23823314 466091611 932183222 14448839941 28897679882