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634686016 = 269916969
BaseRepresentation
bin100101110101001…
…000101001000000
31122020021101112111
4211311020221000
52244434423031
6142551305104
721504512356
oct4565105100
91566241474
10634686016
112a6299aa8
1215867b194
13a1651773
14604157d6
153aac01b1
hex25d48a40

634686016 has 14 divisors (see below), whose sum is σ = 1259455190. Its totient is φ = 317342976.

The previous prime is 634686011. The next prime is 634686037. The reversal of 634686016 is 610686436.

It can be written as a sum of positive squares in only one way, i.e., 473497600 + 161188416 = 21760^2 + 12696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 634686016.

It is not an unprimeable number, because it can be changed into a prime (634686011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958421 + ... + 4958548.

It is an arithmetic number, because the mean of its divisors is an integer number (89961085).

Almost surely, 2634686016 is an apocalyptic number.

It is an amenable number.

634686016 is a deficient number, since it is larger than the sum of its proper divisors (624769174).

634686016 is an equidigital number, since it uses as much as digits as its factorization.

634686016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916981 (or 9916971 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 634686016 is about 25192.9755289049. The cubic root of 634686016 is about 859.3821125071.

The spelling of 634686016 in words is "six hundred thirty-four million, six hundred eighty-six thousand, sixteen".

Divisors: 1 2 4 8 16 32 64 9916969 19833938 39667876 79335752 158671504 317343008 634686016