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28686233268682 = 2118991116082089
BaseRepresentation
bin1101000010111000010001…
…01111100111000111001010
310202120101011220210220011021
412201130020233213013022
512224443401204044212
6141002135034423054
76020340413414563
oct641341057470712
9122511156726137
1028686233268682
11915a843916970
123273701591a8a
13130113c16ac62
147125c76cb16a
1534b2dc49c307
hex1a1708be71ca

28686233268682 has 32 divisors (see below), whose sum is σ = 47520646099200. Its totient is φ = 12878536070400.

The previous prime is 28686233268673. The next prime is 28686233268713.

28686233268682 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6257307 + ... + 9824782.

It is an arithmetic number, because the mean of its divisors is an integer number (1485020190600).

Almost surely, 228686233268682 is an apocalyptic number.

28686233268682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28686233268682 is a deficient number, since it is larger than the sum of its proper divisors (18834412830518).

28686233268682 is a wasteful number, since it uses less digits than its factorization.

28686233268682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16083102.

The product of its digits is 764411904, while the sum is 70.

The spelling of 28686233268682 in words is "twenty-eight trillion, six hundred eighty-six billion, two hundred thirty-three million, two hundred sixty-eight thousand, six hundred eighty-two".

Divisors: 1 2 11 22 89 178 911 979 1822 1958 10021 20042 81079 162158 891869 1783738 16082089 32164178 176902979 353805958 1431305921 2862611842 14650783079 15744365131 29301566158 31488730262 161158613869 322317227738 1303919694031 2607839388062 14343116634341 28686233268682