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208536212 = 22173066709
BaseRepresentation
bin11000110111000…
…00001010010100
3112112101201220102
430123200022110
5411341124322
632405353232
75111346203
oct1433401224
9475351812
10208536212
11a7793385
1259a08818
1334285811
141d9a523a
1513493792
hexc6e0294

208536212 has 12 divisors (see below), whose sum is σ = 386405460. Its totient is φ = 98134656.

The previous prime is 208536179. The next prime is 208536217. The reversal of 208536212 is 212635802.

It can be written as a sum of positive squares in 2 ways, for example, as 65351056 + 143185156 = 8084^2 + 11966^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208536217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533287 + ... + 1533422.

It is an arithmetic number, because the mean of its divisors is an integer number (32200455).

Almost surely, 2208536212 is an apocalyptic number.

It is an amenable number.

208536212 is a deficient number, since it is larger than the sum of its proper divisors (177869248).

208536212 is a wasteful number, since it uses less digits than its factorization.

208536212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066730 (or 3066728 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 208536212 is about 14440.7829427632. The cubic root of 208536212 is about 593.0079197234.

The spelling of 208536212 in words is "two hundred eight million, five hundred thirty-six thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 3066709 6133418 12266836 52134053 104268106 208536212