Search a number
-
+
51380788580133 = 32318311251732491
BaseRepresentation
bin10111010111011000001011…
…01001101100111100100101
320201220221210111110210221120
423223230011221230330211
523213310323334031013
6301140001452404153
713552065560615535
oct1353540551547445
9221827714423846
1051380788580133
111540a519728281
125919b36176659
13228925913718c
14c98bb45634c5
155e17eb3c2123
hex2ebb05a6cf25

51380788580133 has 32 divisors (see below), whose sum is σ = 71533272594432. Its totient is φ = 32743042516800.

The previous prime is 51380788580119. The next prime is 51380788580137. The reversal of 51380788580133 is 33108588708315.

It is not a de Polignac number, because 51380788580133 - 212 = 51380788576037 is a prime.

It is a super-3 number, since 3×513807885801333 (a number of 42 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51380788580137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1581369018 + ... + 1581401508.

It is an arithmetic number, because the mean of its divisors is an integer number (2235414768576).

Almost surely, 251380788580133 is an apocalyptic number.

It is an amenable number.

51380788580133 is a deficient number, since it is larger than the sum of its proper divisors (20152484014299).

51380788580133 is a wasteful number, since it uses less digits than its factorization.

51380788580133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46865.

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 51380788580133 in words is "fifty-one trillion, three hundred eighty billion, seven hundred eighty-eight million, five hundred eighty thousand, one hundred thirty-three".

Divisors: 1 3 23 69 1831 5493 12517 32491 37551 42113 97473 126339 287891 747293 863673 2241879 22918627 59491021 68755881 178473063 406689847 527128421 1220069541 1368293483 1581385263 4104880449 9353866481 28061599443 744649109857 2233947329571 17126929526711 51380788580133