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216108195 = 3552127653
BaseRepresentation
bin11001110000110…
…00110010100011
3120001122102201020
430320120302203
5420310430240
633235540523
75232614022
oct1470306243
9501572636
10216108195
11100a95316
126045a743
1335a07194
14209b68b9
1513e8c0d0
hexce18ca3

216108195 has 16 divisors (see below), whose sum is σ = 346449312. Its totient is φ = 115032320.

The previous prime is 216108173. The next prime is 216108227. The reversal of 216108195 is 591801612.

It is not a de Polignac number, because 216108195 - 211 = 216106147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6012 + ... + 21641.

It is an arithmetic number, because the mean of its divisors is an integer number (21653082).

Almost surely, 2216108195 is an apocalyptic number.

216108195 is a deficient number, since it is larger than the sum of its proper divisors (130341117).

216108195 is a wasteful number, since it uses less digits than its factorization.

216108195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28182.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 216108195 is about 14700.6188645240. The cubic root of 216108195 is about 600.1001638333.

The spelling of 216108195 in words is "two hundred sixteen million, one hundred eight thousand, one hundred ninety-five".

Divisors: 1 3 5 15 521 1563 2605 7815 27653 82959 138265 414795 14407213 43221639 72036065 216108195