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216160005105 = 33511509285977
BaseRepresentation
bin1100100101010000100…
…0111110101111110001
3202122221120012000001000
43021110020332233301
512020143430130410
6243145203032213
721421434504342
oct3112410765761
9678846160030
10216160005105
1183744762220
1235a8766b669
13174cb298285
14a6683c40c9
155952023dc0
hex325423ebf1

216160005105 has 64 divisors (see below), whose sum is σ = 420044486400. Its totient is φ = 104598581760.

The previous prime is 216160005097. The next prime is 216160005119. The reversal of 216160005105 is 501500061612.

It is a happy number.

216160005105 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 600 + 0 + 51 + 0 + 5 = 666.

It is not a de Polignac number, because 216160005105 - 23 = 216160005097 is a prime.

It is a super-2 number, since 2×2161600051052 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 612877 + ... + 898853.

It is an arithmetic number, because the mean of its divisors is an integer number (6563195100).

Almost surely, 2216160005105 is an apocalyptic number.

It is an amenable number.

216160005105 is a deficient number, since it is larger than the sum of its proper divisors (203884481295).

216160005105 is a wasteful number, since it uses less digits than its factorization.

216160005105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286511 (or 286505 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 216160005105 its reverse (501500061612), we get a palindrome (717660066717).

The spelling of 216160005105 in words is "two hundred sixteen billion, one hundred sixty million, five thousand, one hundred five".

Divisors: 1 3 5 9 11 15 27 33 45 55 99 135 165 297 495 509 1485 1527 2545 4581 5599 7635 13743 16797 22905 27995 50391 68715 83985 151173 251955 285977 755865 857931 1429885 2573793 3145747 4289655 7721379 9437241 12868965 15728735 28311723 38606895 47186205 84935169 141558615 145562293 424675845 436686879 727811465 1310060637 1601185223 2183434395 3930181911 4803555669 6550303185 8005926115 14410667007 19650909555 24017778345 43232001021 72053335035 216160005105