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61065550104 = 23313215055609
BaseRepresentation
bin111000110111110010…
…100101100100011000
312211121202121100200220
4320313302211210120
52000030240100404
644015250400040
74261155416526
oct706762454430
9184552540626
1061065550104
1123996a02689
12ba02890020
1359b2438600
142d541c5316
1518c60814d9
hexe37ca5918

61065550104 has 48 divisors (see below), whose sum is σ = 165310597800. Its totient is φ = 18789398784.

The previous prime is 61065550097. The next prime is 61065550163. The reversal of 61065550104 is 40105556016.

61065550104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7523749 + ... + 7531860.

Almost surely, 261065550104 is an apocalyptic number.

It is an amenable number.

61065550104 is an abundant number, since it is smaller than the sum of its proper divisors (104245047696).

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

61065550104 is a wasteful number, since it uses less digits than its factorization.

61065550104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15055644 (or 15055627 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 61065550104 in words is "sixty-one billion, sixty-five million, five hundred fifty thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 169 312 338 507 676 1014 1352 2028 4056 15055609 30111218 45166827 60222436 90333654 120444872 180667308 195722917 361334616 391445834 587168751 782891668 1174337502 1565783336 2348675004 2544397921 4697350008 5088795842 7633193763 10177591684 15266387526 20355183368 30532775052 61065550104