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634733444 = 221491064989
BaseRepresentation
bin100101110101010…
…100001110000100
31122020100210121002
4211311110032010
52244442432234
6142552312432
721505100552
oct4565241604
91566323532
10634733444
112a63216a4
121586a2718
13a166a227
1460428bd2
153aace27e
hex25d54384

634733444 has 12 divisors (see below), whose sum is σ = 1118239500. Its totient is φ = 315236448.

The previous prime is 634733443. The next prime is 634733503. The reversal of 634733444 is 444337436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44729344 + 590004100 = 6688^2 + 24290^2 .

It is a super-2 number, since 2×6347334442 = 805773089864202272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634733398 and 634733407.

It is not an unprimeable number, because it can be changed into a prime (634733443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531899 + ... + 533090.

It is an arithmetic number, because the mean of its divisors is an integer number (93186625).

Almost surely, 2634733444 is an apocalyptic number.

It is an amenable number.

634733444 is a deficient number, since it is larger than the sum of its proper divisors (483506056).

634733444 is a wasteful number, since it uses less digits than its factorization.

634733444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065142 (or 1065140 counting only the distinct ones).

The product of its digits is 290304, while the sum is 38.

The square root of 634733444 is about 25193.9168054513. The cubic root of 634733444 is about 859.4035182408.

The spelling of 634733444 in words is "six hundred thirty-four million, seven hundred thirty-three thousand, four hundred forty-four".

Divisors: 1 2 4 149 298 596 1064989 2129978 4259956 158683361 317366722 634733444