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5250797568 = 2123379601
BaseRepresentation
bin1001110001111100…
…01101000000000000
3111112221022011011000
410320332031000000
541223201010233
62225010452000
7244056020502
oct47076150000
914487264130
105250797568
112254a35a25
121026594000
13658ac0313
1437b507d72
1520ae96d13
hex138f8d000

5250797568 has 208 divisors, whose sum is σ = 15779142400. Its totient is φ = 1725235200.

The previous prime is 5250797537. The next prime is 5250797569. The reversal of 5250797568 is 8657970525.

5250797568 is a `hidden beast` number, since 5 + 2 + 5 + 0 + 79 + 7 + 568 = 666.

It is a super-2 number, since 2×52507975682 = 55141750200229429248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5250797569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8736468 + ... + 8737068.

Almost surely, 25250797568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5250797568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7889571200).

5250797568 is an abundant number, since it is smaller than the sum of its proper divisors (10528344832).

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

5250797568 is an equidigital number, since it uses as much as digits as its factorization.

5250797568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The square root of 5250797568 is about 72462.3872640144. The cubic root of 5250797568 is about 1738.1013296572.

The spelling of 5250797568 in words is "five billion, two hundred fifty million, seven hundred ninety-seven thousand, five hundred sixty-eight".