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51298840184672 = 251984373092409
BaseRepresentation
bin10111010100111111100010…
…01001011000011101100000
320201122010021101002222211202
423222133301021120131200
523210440011041402142
6301034210054100332
713543135040011643
oct1352376111303540
9221563241088752
1051298840184672
1115388796a20913
12590608594a6a8
1322815c9455852
14c94c3cb23a5a
155de601d36032
hex2ea7f1258760

51298840184672 has 24 divisors (see below), whose sum is σ = 106310096436600. Its totient is φ = 24299450613504.

The previous prime is 51298840184639. The next prime is 51298840184701. The reversal of 51298840184672 is 27648104889215.

51298840184672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51298840184599 and 51298840184608.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42186545597 + ... + 42186546812.

It is an arithmetic number, because the mean of its divisors is an integer number (4429587351525).

Almost surely, 251298840184672 is an apocalyptic number.

It is an amenable number.

51298840184672 is an abundant number, since it is smaller than the sum of its proper divisors (55011256251928).

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

51298840184672 is a wasteful number, since it uses less digits than its factorization.

51298840184672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84373092438 (or 84373092430 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 65.

The spelling of 51298840184672 in words is "fifty-one trillion, two hundred ninety-eight billion, eight hundred forty million, one hundred eighty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 84373092409 168746184818 337492369636 674984739272 1349969478544 1603088755771 2699938957088 3206177511542 6412355023084 12824710046168 25649420092336 51298840184672