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201284052 = 22316773671
BaseRepresentation
bin10111111111101…
…01100111010100
3112000202021210220
423333311213110
5403012042202
631550114340
74662612654
oct1377654724
9460667726
10201284052
11a368a762
12574ab9b0
13329168b8
141ca38364
1512a0eabc
hexbff59d4

201284052 has 12 divisors (see below), whose sum is σ = 469662816. Its totient is φ = 67094680.

The previous prime is 201284003. The next prime is 201284053. The reversal of 201284052 is 250482102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201284053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8386824 + ... + 8386847.

It is an arithmetic number, because the mean of its divisors is an integer number (39138568).

Almost surely, 2201284052 is an apocalyptic number.

It is an amenable number.

201284052 is an abundant number, since it is smaller than the sum of its proper divisors (268378764).

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

201284052 is a wasteful number, since it uses less digits than its factorization.

201284052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16773678 (or 16773676 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 201284052 is about 14187.4610836471. The cubic root of 201284052 is about 586.0524090468.

The spelling of 201284052 in words is "two hundred one million, two hundred eighty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 16773671 33547342 50321013 67094684 100642026 201284052