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82106799960 = 23355777511579
BaseRepresentation
bin100110001110111110…
…0100101011101011000
321211221011102121020010
41030131330211131120
52321123320044320
6101415213401520
75634453166353
oct1143574453530
9254834377203
1082106799960
113190416a079
1213ab54992a0
137986763b03
143d8c8b529a
15220842aae0
hex131df25758

82106799960 has 128 divisors (see below), whose sum is σ = 247232332800. Its totient is φ = 21814272000.

The previous prime is 82106799881. The next prime is 82106799979. The reversal of 82106799960 is 6999760128.

It is a self number, because there is not a number n which added to its sum of digits gives 82106799960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51998451 + ... + 52000029.

It is an arithmetic number, because the mean of its divisors is an integer number (1931502600).

Almost surely, 282106799960 is an apocalyptic number.

It is an amenable number.

82106799960 is an abundant number, since it is smaller than the sum of its proper divisors (165125532840).

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

82106799960 is a wasteful number, since it uses less digits than its factorization.

82106799960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 82106799960 in words is "eighty-two billion, one hundred six million, seven hundred ninety-nine thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 577 751 1154 1502 1579 1731 2253 2308 2885 3004 3158 3462 3755 4506 4616 4737 5770 6008 6316 6924 7510 7895 8655 9012 9474 11265 11540 12632 13848 15020 15790 17310 18024 18948 22530 23080 23685 30040 31580 34620 37896 45060 47370 63160 69240 90120 94740 189480 433327 866654 911083 1185829 1299981 1733308 1822166 2166635 2371658 2599962 2733249 3466616 3557487 3644332 4333270 4555415 4743316 5199924 5466498 5929145 6499905 7114974 7288664 8666540 9110830 9486632 10399848 10932996 11858290 12999810 13666245 14229948 17333080 17787435 18221660 21865992 23716580 25999620 27332490 28459896 35574870 36443320 47433160 51999240 54664980 71149740 109329960 142299480 684223333 1368446666 2052669999 2736893332 3421116665 4105339998 5473786664 6842233330 8210679996 10263349995 13684466660 16421359992 20526699990 27368933320 41053399980 82106799960