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51066211846 = 21324314923581
BaseRepresentation
bin101111100011110010…
…001000111000000110
311212210220002100022111
4233203302020320012
51314040422234341
635243130051234
73455316432046
oct574362107006
9155726070274
1051066211846
111a7255aa871
129a91b79b1a
134a7a920400
142686195726
1514dd2a4681
hexbe3c88e06

51066211846 has 48 divisors (see below), whose sum is σ = 85447018800. Its totient is φ = 22865431680.

The previous prime is 51066211811. The next prime is 51066211871. The reversal of 51066211846 is 64811266015.

It is a junction number, because it is equal to n+sod(n) for n = 51066211799 and 51066211808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2153776 + ... + 2177356.

It is an arithmetic number, because the mean of its divisors is an integer number (1780146225).

Almost surely, 251066211846 is an apocalyptic number.

51066211846 is a deficient number, since it is larger than the sum of its proper divisors (34380806954).

51066211846 is a wasteful number, since it uses less digits than its factorization.

51066211846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23801 (or 23788 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 51066211846 in words is "fifty-one billion, sixty-six million, two hundred eleven thousand, eight hundred forty-six".

Divisors: 1 2 13 26 43 86 149 169 298 338 559 1118 1937 3874 6407 7267 12814 14534 23581 25181 47162 50362 83291 166582 306553 613106 1013983 1082783 2027966 2165566 3513569 3985189 7027138 7970378 13181779 26363558 45676397 91352794 151083467 171363127 302166934 342726254 593793161 1187586322 1964085071 3928170142 25533105923 51066211846