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51468051040 = 255745953617
BaseRepresentation
bin101111111011101111…
…000010001001100000
311220211220012220001121
4233323233002021200
51320401310113130
635351042542024
73501266133640
oct577357021140
9156756186047
1051468051040
111a91141157a
129b84667914
134b12c56b93
1426c36b8520
1515136ccd7a
hexbfbbc2260

51468051040 has 48 divisors (see below), whose sum is σ = 138963740832. Its totient is φ = 17646188544.

The previous prime is 51468050999. The next prime is 51468051097. The reversal of 51468051040 is 4015086415.

It is a junction number, because it is equal to n+sod(n) for n = 51468050987 and 51468051005.

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 7 ways as a sum of consecutive naturals, for example, 22975689 + ... + 22977928.

It is an arithmetic number, because the mean of its divisors is an integer number (2895077934).

Almost surely, 251468051040 is an apocalyptic number.

It is an amenable number.

51468051040 is an abundant number, since it is smaller than the sum of its proper divisors (87495689792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51468051040 is a wasteful number, since it uses less digits than its factorization.

51468051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45953639 (or 45953631 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 51468051040 in words is "fifty-one billion, four hundred sixty-eight million, fifty-one thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 45953617 91907234 183814468 229768085 321675319 367628936 459536170 643350638 735257872 919072340 1286701276 1470515744 1608376595 1838144680 2573402552 3216753190 3676289360 5146805104 6433506380 7352578720 10293610208 12867012760 25734025520 51468051040