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208036970 = 2531671087
BaseRepresentation
bin11000110011001…
…10010001101010
3112111110101001222
430121212101222
5411224140340
632350542042
75104166531
oct1431462152
9474411058
10208036970
11a7482289
1259807922
133413c4cb
141d8b5318
15133e58b5
hexc66646a

208036970 has 16 divisors (see below), whose sum is σ = 386546688. Its totient is φ = 80530320.

The previous prime is 208036951. The next prime is 208036987. The reversal of 208036970 is 79630802.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 208036970.

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 7 ways as a sum of consecutive naturals, for example, 335234 + ... + 335853.

It is an arithmetic number, because the mean of its divisors is an integer number (24159168).

Almost surely, 2208036970 is an apocalyptic number.

208036970 is a deficient number, since it is larger than the sum of its proper divisors (178509718).

208036970 is a wasteful number, since it uses less digits than its factorization.

208036970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671125.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 208036970 is about 14423.4867490493. The cubic root of 208036970 is about 592.5343152813.

The spelling of 208036970 in words is "two hundred eight million, thirty-six thousand, nine hundred seventy".

Divisors: 1 2 5 10 31 62 155 310 671087 1342174 3355435 6710870 20803697 41607394 104018485 208036970