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28110616660011 = 3171175294689809
BaseRepresentation
bin1100110010001000000110…
…10100100000100000101011
310200112100102012121110101210
412121010003110200200223
512141031020331110021
6135441501121044203
75630632200106164
oct631040324404053
9120470365543353
1028110616660011
118a58711298156
1231a0038786663
13128ba87084772
146d27bd96276b
1533b34d102e76
hex19910352082b

28110616660011 has 16 divisors (see below), whose sum is σ = 39685922589600. Its totient is φ = 17637880147968.

The previous prime is 28110616660003. The next prime is 28110616660099. The reversal of 28110616660011 is 11006661601182.

It is not a de Polignac number, because 28110616660011 - 23 = 28110616660003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28110616660411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3649075 + ... + 8338883.

It is an arithmetic number, because the mean of its divisors is an integer number (2480370161850).

Almost surely, 228110616660011 is an apocalyptic number.

28110616660011 is a deficient number, since it is larger than the sum of its proper divisors (11575305929589).

28110616660011 is a wasteful number, since it uses less digits than its factorization.

28110616660011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807358.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 28110616660011 in words is "twenty-eight trillion, one hundred ten billion, six hundred sixteen million, six hundred sixty thousand, eleven".

Divisors: 1 3 17 51 117529 352587 1997993 4689809 5993979 14069427 79726753 239180259 551188561961 1653565685883 9370205553337 28110616660011