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201304864 = 2537170021
BaseRepresentation
bin10111111111110…
…10101100100000
3112000210100100201
423333322230200
5403013223424
631550354544
74663030435
oct1377725440
9460710321
10201304864
11a36a4362
12574bba54
1332923207
141ca41b8c
1512a15d44
hexbffab20

201304864 has 24 divisors (see below), whose sum is σ = 407032668. Its totient is φ = 97931520.

The previous prime is 201304861. The next prime is 201304889. The reversal of 201304864 is 468403102.

It can be written as a sum of positive squares in 2 ways, for example, as 187909264 + 13395600 = 13708^2 + 3660^2 .

It is not an unprimeable number, because it can be changed into a prime (201304861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83827 + ... + 86194.

Almost surely, 2201304864 is an apocalyptic number.

It is an amenable number.

201304864 is an abundant number, since it is smaller than the sum of its proper divisors (205727804).

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

201304864 is a wasteful number, since it uses less digits than its factorization.

201304864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170068 (or 170060 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 201304864 is about 14188.1945292557. The cubic root of 201304864 is about 586.0726068755.

Adding to 201304864 its reverse (468403102), we get a palindrome (669707966).

The spelling of 201304864 in words is "two hundred one million, three hundred four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 170021 340042 680084 1360168 2720336 5440672 6290777 12581554 25163108 50326216 100652432 201304864