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28136234110 = 2542119313461
BaseRepresentation
bin11010001101000011…
…001101110001111110
32200121212021210012211
4122031003031301332
5430110333442420
620531533051034
72014146021025
oct321503156176
980555253184
1028136234110
1110a29197146
125552926a7a
132865209c4a
14150cad38bc
15aea1c6e5a
hex68d0cdc7e

28136234110 has 32 divisors (see below), whose sum is σ = 50806484064. Its totient is φ = 11218704000.

The previous prime is 28136234069. The next prime is 28136234129. The reversal of 28136234110 is 1143263182.

It is a super-3 number, since 3×281362341103 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8127780 + ... + 8131240.

It is an arithmetic number, because the mean of its divisors is an integer number (1587702627).

Almost surely, 228136234110 is an apocalyptic number.

28136234110 is a deficient number, since it is larger than the sum of its proper divisors (22670249954).

28136234110 is a wasteful number, since it uses less digits than its factorization.

28136234110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 28136234110 its reverse (1143263182), we get a palindrome (29279497292).

The spelling of 28136234110 in words is "twenty-eight billion, one hundred thirty-six million, two hundred thirty-four thousand, one hundred ten".

Divisors: 1 2 5 10 421 842 1931 2105 3461 3862 4210 6922 9655 17305 19310 34610 812951 1457081 1625902 2914162 4064755 6683191 7285405 8129510 13366382 14570810 33415955 66831910 2813623411 5627246822 14068117055 28136234110