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28420210135486 = 2137908431382177
BaseRepresentation
bin1100111011001000110001…
…00001111001000110111110
310201121221112022100112110101
412131210120201321012332
512211114042243313421
6140240021515431314
75662202205166021
oct635443041710676
9121557468315411
1028420210135486
119067a41787584
12323003aa5553a
1312b20255b6580
1470378cc451b8
1534441cb1d191
hex19d9188791be

28420210135486 has 16 divisors (see below), whose sum is σ = 45909661485744. Its totient is φ = 13116993986304.

The previous prime is 28420210135433. The next prime is 28420210135487. The reversal of 28420210135486 is 68453101202482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28420210135487) 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, 19870830 + ... + 21253006.

It is an arithmetic number, because the mean of its divisors is an integer number (2869353842859).

Almost surely, 228420210135486 is an apocalyptic number.

28420210135486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28420210135486 is a deficient number, since it is larger than the sum of its proper divisors (17489451350258).

28420210135486 is a wasteful number, since it uses less digits than its factorization.

28420210135486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173035.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 28420210135486 in words is "twenty-eight trillion, four hundred twenty billion, two hundred ten million, one hundred thirty-five thousand, four hundred eighty-six".

Divisors: 1 2 13 26 790843 1382177 1581686 2764354 10280959 17968301 20561918 35936602 1093085005211 2186170010422 14210105067743 28420210135486