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208943225 = 52531031531
BaseRepresentation
bin11000111010000…
…11100001111001
3112120011102012222
430131003201321
5411442140400
632422213425
75114662631
oct1435034171
9476142188
10208943225
11a7a41157
1259b84275
1334398b5a
141da6d6c1
1513524185
hexc743879

208943225 has 24 divisors (see below), whose sum is σ = 266715072. Its totient is φ = 162302400.

The previous prime is 208943191. The next prime is 208943227. The reversal of 208943225 is 522349802.

208943225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208943225 - 214 = 208926841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208943227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135710 + ... + 137240.

It is an arithmetic number, because the mean of its divisors is an integer number (11113128).

Almost surely, 2208943225 is an apocalyptic number.

208943225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208943225 is a deficient number, since it is larger than the sum of its proper divisors (57771847).

208943225 is a wasteful number, since it uses less digits than its factorization.

208943225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 208943225 is about 14454.8685569949. The cubic root of 208943225 is about 593.3934723862.

The spelling of 208943225 in words is "two hundred eight million, nine hundred forty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 53 103 265 515 1325 1531 2575 5459 7655 27295 38275 81143 136475 157693 405715 788465 2028575 3942325 8357729 41788645 208943225