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208214633 = 11139136177
BaseRepresentation
bin11000110100100…
…01101001101001
3112111210101210002
430122101221221
5411300332013
632354432345
75105536514
oct1432215151
9474711702
10208214633
11a7593810
12598926b5
13341a2333
141d91dd7b
151342d358
hexc691a69

208214633 has 8 divisors (see below), whose sum is σ = 228779040. Its totient is φ = 187922880.

The previous prime is 208214621. The next prime is 208214663. The reversal of 208214633 is 336412802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208214633 - 222 = 204020329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208214596 and 208214605.

It is not an unprimeable number, because it can be changed into a prime (208214663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66560 + ... + 69617.

It is an arithmetic number, because the mean of its divisors is an integer number (28597380).

Almost surely, 2208214633 is an apocalyptic number.

It is an amenable number.

208214633 is a deficient number, since it is larger than the sum of its proper divisors (20564407).

208214633 is a wasteful number, since it uses less digits than its factorization.

208214633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136327.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 208214633 is about 14429.6442437089. The cubic root of 208214633 is about 592.7029415133.

The spelling of 208214633 in words is "two hundred eight million, two hundred fourteen thousand, six hundred thirty-three".

Divisors: 1 11 139 1529 136177 1497947 18928603 208214633