Search a number
-
+
55055500550471 = 1967239953189881
BaseRepresentation
bin11001000010010100110111…
…00011011010000101000111
321012221020212111100110220102
430201022123203122011013
524204012131120103341
6313032051531154315
714411425425162311
oct1441123343320507
9235836774313812
1055055500550471
11165a69a7848683
12621215b8a599b
132494933001345
14d849b403c7b1
156571beaa3c9b
hex32129b8da147

55055500550471 has 32 divisors (see below), whose sum is σ = 59126520499200. Its totient is φ = 51110434045440.

The previous prime is 55055500550459. The next prime is 55055500550629. The reversal of 55055500550471 is 17405500555055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55055500550471 is a prime.

It is a super-3 number, since 3×550555005504713 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055500540471) 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, 289852451 + ... + 290042331.

It is an arithmetic number, because the mean of its divisors is an integer number (1847703765600).

Almost surely, 255055500550471 is an apocalyptic number.

55055500550471 is a deficient number, since it is larger than the sum of its proper divisors (4071019948729).

55055500550471 is a wasteful number, since it uses less digits than its factorization.

55055500550471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191159.

The product of its (nonzero) digits is 2187500, while the sum is 47.

The spelling of 55055500550471 in words is "fifty-five trillion, fifty-five billion, five hundred million, five hundred fifty thousand, four hundred seventy-one".

Divisors: 1 19 67 239 953 1273 4541 16013 18107 63851 189881 227767 304247 1213169 3607739 4327573 12722027 15260389 45381559 180956593 241718513 289947391 862249621 3040564453 3438175267 12124091731 43248625727 57770724607 230357742889 821723888813 2897657923709 55055500550471