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206625355 = 5317130363
BaseRepresentation
bin11000101000011…
…01101001001011
3112101210122200221
430110031221023
5410344002410
632300410511
75056200166
oct1424155113
9471718627
10206625355
11a66a8762
1259246a37
1333a66b31
141d628add
15132174da
hexc50da4b

206625355 has 8 divisors (see below), whose sum is σ = 248734512. Its totient is φ = 164777568.

The previous prime is 206625347. The next prime is 206625379. The reversal of 206625355 is 553526602.

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 206625355 - 23 = 206625347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206625355.

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, 63597 + ... + 66766.

It is an arithmetic number, because the mean of its divisors is an integer number (31091814).

Almost surely, 2206625355 is an apocalyptic number.

206625355 is a deficient number, since it is larger than the sum of its proper divisors (42109157).

206625355 is a wasteful number, since it uses less digits than its factorization.

206625355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130685.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 206625355 is about 14374.4688597527. The cubic root of 206625355 is about 591.1910775371.

The spelling of 206625355 in words is "two hundred six million, six hundred twenty-five thousand, three hundred fifty-five".

Divisors: 1 5 317 1585 130363 651815 41325071 206625355