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51559086103 = 7213961712269
BaseRepresentation
bin110000000001001010…
…010011100000010111
311221002020111221200121
4300001022103200113
51321043111223403
635404054052411
73503453000200
oct600112234027
9157066457617
1051559086103
111a95883a568
129bab04a107
134b28a7bc95
1426d18145a7
15151b6b13bd
hexc01293817

51559086103 has 24 divisors (see below), whose sum is σ = 60511222800. Its totient is φ = 43800882048.

The previous prime is 51559086097. The next prime is 51559086127. The reversal of 51559086103 is 30168095515.

It is a de Polignac number, because none of the positive numbers 2k-51559086103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51559086103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51559086143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4196253 + ... + 4208521.

It is an arithmetic number, because the mean of its divisors is an integer number (2521300950).

Almost surely, 251559086103 is an apocalyptic number.

51559086103 is a deficient number, since it is larger than the sum of its proper divisors (8952136697).

51559086103 is a wasteful number, since it uses less digits than its factorization.

51559086103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13039 (or 13032 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 51559086103 in words is "fifty-one billion, five hundred fifty-nine million, eighty-six thousand, one hundred three".

Divisors: 1 7 49 139 617 973 4319 6811 12269 30233 85763 85883 600341 601181 1705391 4202387 7569973 11937737 52989811 83564159 370928677 1052226247 7365583729 51559086103