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28893239882 = 213171012832287
BaseRepresentation
bin11010111010001010…
…111101101001001010
32202120121201122220122
4122322022331221022
5433133132134012
621135014223242
72042000325653
oct327212755112
982517648818
1028893239882
1111287531851
125724354b22
132955cb8460
14158146a52a
15b418a9e72
hex6ba2bda4a

28893239882 has 64 divisors (see below), whose sum is σ = 50106760704. Its totient is φ = 12377318400.

The previous prime is 28893239861. The next prime is 28893239891.

28893239882 is nontrivially palindromic in base 10.

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 31 ways as a sum of consecutive naturals, for example, 12632543 + ... + 12634829.

It is an arithmetic number, because the mean of its divisors is an integer number (782918136).

Almost surely, 228893239882 is an apocalyptic number.

28893239882 is a deficient number, since it is larger than the sum of its proper divisors (21213520822).

28893239882 is a wasteful number, since it uses less digits than its factorization.

28893239882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703.

The product of its digits is 23887872, while the sum is 62.

The spelling of 28893239882 in words is "twenty-eight billion, eight hundred ninety-three million, two hundred thirty-nine thousand, eight hundred eighty-two".

Divisors: 1 2 13 17 26 34 101 202 221 283 442 566 1313 1717 2287 2626 3434 3679 4574 4811 7358 9622 22321 28583 29731 38879 44642 57166 59462 62543 77758 125086 230987 371579 461974 485911 505427 647221 743158 971822 1010854 1294442 3002831 3926779 6005662 6316843 7853558 8413873 11002757 12633686 16827746 22005514 51048127 65369321 102096254 130738642 143035841 286071682 849801173 1111278457 1699602346 2222556914 14446619941 28893239882