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82706512050 = 2345245192
BaseRepresentation
bin100110100000110110…
…0010011100010110010
321220110221220010120000
41031001230103202302
52323340331341200
6101554515330430
75655354516201
oct1150154234262
9256427803500
1082706512050
11320917406a8
12140422b0a16
137a50a8b636
1440083c5238
152240ddd300
hex1341b138b2

82706512050 has 90 divisors (see below), whose sum is σ = 229852438893. Its totient is φ = 22050189360.

The previous prime is 82706512037. The next prime is 82706512079. The reversal of 82706512050 is 5021560728.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81052381809 + 1654130241 = 284697^2 + 40671^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=203355.

It is a junction number, because it is equal to n+sod(n) for n = 82706511996 and 82706512014.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 18299691 + ... + 18304209.

Almost surely, 282706512050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82706512050

82706512050 is an abundant number, since it is smaller than the sum of its proper divisors (147145926843).

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

82706512050 is an frugal number, since it uses more digits than its factorization.

82706512050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 82706512050 in words is "eighty-two billion, seven hundred six million, five hundred twelve thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1350 2025 4050 4519 9038 13557 22595 27114 40671 45190 67785 81342 112975 122013 135570 203355 225950 244026 338925 366039 406710 610065 677850 732078 1016775 1220130 1830195 2033550 3050325 3660390 6100650 9150975 18301950 20421361 40842722 61264083 102106805 122528166 183792249 204213610 306320415 367584498 510534025 551376747 612640830 918961245 1021068050 1102753494 1531602075 1654130241 1837922490 2756883735 3063204150 3308260482 4594806225 5513767470 8270651205 9189612450 13784418675 16541302410 27568837350 41353256025 82706512050