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438788968 = 2354848621
BaseRepresentation
bin11010001001110…
…110001101101000
31010120122210022021
4122021312031220
51344312221333
6111312434224
713605434062
oct3211661550
91116583267
10438788968
11205759712
12102b48974
136cba2b57
14423c0732
15287c682d
hex1a276368

438788968 has 8 divisors (see below), whose sum is σ = 822729330. Its totient is φ = 219394480.

The previous prime is 438788927. The next prime is 438788969. The reversal of 438788968 is 869887834.

It can be written as a sum of positive squares in only one way, i.e., 356378884 + 82410084 = 18878^2 + 9078^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (438788969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27424303 + ... + 27424318.

Almost surely, 2438788968 is an apocalyptic number.

It is an amenable number.

438788968 is a deficient number, since it is larger than the sum of its proper divisors (383940362).

438788968 is a wasteful number, since it uses less digits than its factorization.

438788968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54848627 (or 54848623 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The square root of 438788968 is about 20947.2902304809. The cubic root of 438788968 is about 759.8920483790.

The spelling of 438788968 in words is "four hundred thirty-eight million, seven hundred eighty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 54848621 109697242 219394484 438788968