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80036852085 = 345594437561
BaseRepresentation
bin100101010001010010…
…0010111000101110101
321122120220110100120000
41022202210113011311
52302403413231320
6100433551301513
75532250006041
oct1124244270565
9248526410500
1080036852085
1130a41797653
121361821a899
137716968898
143c33a0d021
15213684cc90
hex12a2917175

80036852085 has 80 divisors (see below), whose sum is σ = 146253919680. Its totient is φ = 41862562560.

The previous prime is 80036852083. The next prime is 80036852111. The reversal of 80036852085 is 58025863008.

It is a happy number.

80036852085 is a `hidden beast` number, since 80 + 0 + 368 + 5 + 208 + 5 = 666.

It is not a de Polignac number, because 80036852085 - 21 = 80036852083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80036852085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80036852083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10581705 + ... + 10589265.

It is an arithmetic number, because the mean of its divisors is an integer number (1828173996).

Almost surely, 280036852085 is an apocalyptic number.

It is an amenable number.

80036852085 is a deficient number, since it is larger than the sum of its proper divisors (66217067595).

80036852085 is a wasteful number, since it uses less digits than its factorization.

80036852085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080 (or 8071 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 80036852085 in words is "eighty billion, thirty-six million, eight hundred fifty-two thousand, eighty-five".

Divisors: 1 3 5 9 15 27 45 59 81 135 177 295 405 443 531 885 1329 1593 2215 2655 3987 4779 6645 7561 7965 11961 19935 22683 23895 26137 35883 37805 59805 68049 78411 113415 130685 179415 204147 235233 340245 392055 446099 612441 705699 1020735 1176165 1338297 2117097 2230495 3062205 3349523 3528495 4014891 6691485 10048569 10585485 12044673 16747615 20074455 30145707 36134019 50242845 60223365 90437121 150728535 180670095 197621857 271311363 452185605 592865571 988109285 1356556815 1778596713 2964327855 5335790139 8892983565 16007370417 26678950695 80036852085