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82065495072 = 2531127396779
BaseRepresentation
bin100110001101101111…
…1000001010000100000
321211211021201002120110
41030123133001100200
52321032231320242
6101411140211320
75633442125061
oct1143337012040
9254737632513
1082065495072
1131892918100
1213aa3699b40
13797b031352
143d87202568
1522049bc39c
hex131b7c1420

82065495072 has 144 divisors (see below), whose sum is σ = 240032207520. Its totient is φ = 24527416320.

The previous prime is 82065494939. The next prime is 82065495073. The reversal of 82065495072 is 27059456028.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (82065495073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 799579 + ... + 896357.

It is an arithmetic number, because the mean of its divisors is an integer number (1666890330).

Almost surely, 282065495072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82065495072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120016103760).

82065495072 is an abundant number, since it is smaller than the sum of its proper divisors (157966712448).

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

82065495072 is a wasteful number, since it uses less digits than its factorization.

82065495072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96887 (or 96868 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 82065495072 in words is "eighty-two billion, sixty-five million, four hundred ninety-five thousand, seventy-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 73 88 96 121 132 146 176 219 242 264 292 352 363 438 484 528 584 726 803 876 968 1056 1168 1452 1606 1752 1936 2336 2409 2904 3212 3504 3872 4818 5808 6424 7008 8833 9636 11616 12848 17666 19272 25696 26499 35332 38544 52998 70664 77088 96779 105996 141328 193558 211992 282656 290337 387116 423984 580674 774232 847968 1064569 1161348 1548464 2129138 2322696 3096928 3193707 4258276 4645392 6387414 7064867 8516552 9290784 11710259 12774828 14129734 17033104 21194601 23420518 25549656 28259468 34066208 35130777 42389202 46841036 51099312 56518936 70261554 77713537 84778404 93682072 102198624 113037872 140523108 155427074 169556808 187364144 226075744 233140611 281046216 310854148 339113616 374728288 466281222 562092432 621708296 678227232 854848907 932562444 1124184864 1243416592 1709697814 1865124888 2486833184 2564546721 3419395628 3730249776 5129093442 6838791256 7460499552 10258186884 13677582512 20516373768 27355165024 41032747536 82065495072