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28872866827882 = 2711971932846889
BaseRepresentation
bin1101001000010011111001…
…11110001000111001101010
310210020012220201210000220201
412210021330332020321222
512241023112401443012
6141224002323342414
76036665361453460
oct644117476107152
9123205821700821
1028872866827882
119221a06679280
1232a3908821a0a
1313159131c6b5c
1471b6504d6830
153510b2239857
hex1a427cf88e6a

28872866827882 has 32 divisors (see below), whose sum is σ = 54552670623360. Its totient is φ = 11133198074880.

The previous prime is 28872866827873. The next prime is 28872866827913.

28872866827882 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 28872866827796 and 28872866827805.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 966408507 + ... + 966438382.

It is an arithmetic number, because the mean of its divisors is an integer number (1704770956980).

Almost surely, 228872866827882 is an apocalyptic number.

28872866827882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28872866827882 is a deficient number, since it is larger than the sum of its proper divisors (25679803795478).

28872866827882 is a wasteful number, since it uses less digits than its factorization.

28872866827882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932847006.

The product of its digits is 7398752256, while the sum is 82.

The spelling of 28872866827882 in words is "twenty-eight trillion, eight hundred seventy-two billion, eight hundred sixty-six million, eight hundred twenty-seven thousand, eight hundred eighty-two".

Divisors: 1 2 7 11 14 22 77 97 154 194 679 1067 1358 2134 7469 14938 1932846889 3865693778 13529928223 21261315779 27059856446 42522631558 148829210453 187486148233 297658420906 374972296466 1312403037631 2062347630563 2624806075262 4124695261126 14436433413941 28872866827882