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208320814 = 21319494111
BaseRepresentation
bin11000110101010…
…11100100101110
3112111222210102201
430122223210232
5411312231224
632401012114
75106461212
oct1432534456
9474883381
10208320814
11a7656569
125992403a
133420b770
141d94a942
151344ea44
hexc6ab92e

208320814 has 16 divisors (see below), whose sum is σ = 336772800. Its totient is φ = 96075360.

The previous prime is 208320797. The next prime is 208320817. The reversal of 208320814 is 418023802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208320817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48619 + ... + 52729.

It is an arithmetic number, because the mean of its divisors is an integer number (21048300).

Almost surely, 2208320814 is an apocalyptic number.

208320814 is a deficient number, since it is larger than the sum of its proper divisors (128451986).

208320814 is a wasteful number, since it uses less digits than its factorization.

208320814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 208320814 is about 14433.3230407969. The cubic root of 208320814 is about 592.8036758617.

The spelling of 208320814 in words is "two hundred eight million, three hundred twenty thousand, eight hundred fourteen".

Divisors: 1 2 13 26 1949 3898 4111 8222 25337 50674 53443 106886 8012339 16024678 104160407 208320814