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7649968608 = 253244959159
BaseRepresentation
bin1110001111111100…
…10100000111100000
3201202010202200002200
413013332110013200
5111131342443413
63303033213200
7360400442322
oct70776240740
921663680080
107649968608
113276231707
121595b61200
1394bb78859
14527dcd612
152eb907573
hex1c7f941e0

7649968608 has 72 divisors (see below), whose sum is σ = 21803418000. Its totient is φ = 2544267264.

The previous prime is 7649968591. The next prime is 7649968631. The reversal of 7649968608 is 8068699467.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99733 + ... + 158891.

It is an arithmetic number, because the mean of its divisors is an integer number (302825250).

Almost surely, 27649968608 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 7649968608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10901709000).

7649968608 is an abundant number, since it is smaller than the sum of its proper divisors (14153449392).

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

7649968608 is a wasteful number, since it uses less digits than its factorization.

7649968608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59624 (or 59613 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The square root of 7649968608 is about 87464.0989663759. The cubic root of 7649968608 is about 1970.3946410631.

The spelling of 7649968608 in words is "seven billion, six hundred forty-nine million, nine hundred sixty-eight thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 449 898 1347 1796 2694 3592 4041 5388 7184 8082 10776 14368 16164 21552 32328 43104 59159 64656 118318 129312 177477 236636 354954 473272 532431 709908 946544 1064862 1419816 1893088 2129724 2839632 4259448 5679264 8518896 17037792 26562391 53124782 79687173 106249564 159374346 212499128 239061519 318748692 424998256 478123038 637497384 849996512 956246076 1274994768 1912492152 2549989536 3824984304 7649968608