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628132568 = 23721602379
BaseRepresentation
bin100101011100001…
…000101011011000
31121202221102220012
4211130020223120
52241300220233
6142155021052
721365016200
oct4534105330
91552842805
10628132568
112a2623328
1215643a788
13a019889b
145d5cb400
153a228548
hex25708ad8

628132568 has 24 divisors (see below), whose sum is σ = 1370034900. Its totient is φ = 269199504.

The previous prime is 628132567. The next prime is 628132601. The reversal of 628132568 is 865231826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628132567) 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 5 ways as a sum of consecutive naturals, for example, 800798 + ... + 801581.

Almost surely, 2628132568 is an apocalyptic number.

It is an amenable number.

628132568 is an abundant number, since it is smaller than the sum of its proper divisors (741902332).

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

628132568 is a wasteful number, since it uses less digits than its factorization.

628132568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602399 (or 1602388 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 628132568 is about 25062.5730522626. The cubic root of 628132568 is about 856.4140243927.

The spelling of 628132568 in words is "six hundred twenty-eight million, one hundred thirty-two thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 1602379 3204758 6409516 11216653 12819032 22433306 44866612 78516571 89733224 157033142 314066284 628132568