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28418791344422 = 2127796131405361
BaseRepresentation
bin1100111011000110000111…
…11101101000100100100110
310201121210212102122111000012
412131203003331220210212
512211103141041010142
6140235225034050222
75662122066520643
oct635430375504446
9121553772574005
1028418791344422
119067383923886
12322b903879972
1312b1b5a688a2b
14703696640dca
153443882b5882
hex19d8c3f68926

28418791344422 has 16 divisors (see below), whose sum is σ = 42964412262912. Its totient is φ = 14097323560320.

The previous prime is 28418791344421. The next prime is 28418791344443. The reversal of 28418791344422 is 22444319781482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28418791344421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19519022 + ... + 20924382.

It is an arithmetic number, because the mean of its divisors is an integer number (2685275766432).

Almost surely, 228418791344422 is an apocalyptic number.

28418791344422 is a deficient number, since it is larger than the sum of its proper divisors (14545620918490).

28418791344422 is a wasteful number, since it uses less digits than its factorization.

28418791344422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485103.

The product of its digits is 24772608, while the sum is 59.

The spelling of 28418791344422 in words is "twenty-eight trillion, four hundred eighteen billion, seven hundred ninety-one million, three hundred forty-four thousand, four hundred twenty-two".

Divisors: 1 2 127 254 79613 159226 1405361 2810722 10110851 20221702 178480847 356961694 111885005293 223770010586 14209395672211 28418791344422