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201090208 = 2511571279
BaseRepresentation
bin10111111110001…
…10010010100000
3112000101102220111
423333012102200
5402434341313
631542021104
74661144554
oct1377062240
9460342814
10201090208
11a3568060
1257417794
13328795b7
141c9c7864
15129c243d
hexbfc64a0

201090208 has 24 divisors (see below), whose sum is σ = 431887680. Its totient is φ = 91404480.

The previous prime is 201090203. The next prime is 201090217. The reversal of 201090208 is 802090102.

201090208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (201090203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285288 + ... + 285991.

It is an arithmetic number, because the mean of its divisors is an integer number (17995320).

Almost surely, 2201090208 is an apocalyptic number.

It is an amenable number.

201090208 is an abundant number, since it is smaller than the sum of its proper divisors (230797472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201090208 is a wasteful number, since it uses less digits than its factorization.

201090208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571300 (or 571292 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 201090208 is about 14180.6279127548. The cubic root of 201090208 is about 585.8642185610.

The spelling of 201090208 in words is "two hundred one million, ninety thousand, two hundred eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 571279 1142558 2285116 4570232 6284069 9140464 12568138 18280928 25136276 50272552 100545104 201090208