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8752229009 = 313130121493
BaseRepresentation
bin10000010011010110…
…00110101010010001
3211120221212022002222
420021223012222101
5120411032312014
64004250350425
7426613501436
oct101153065221
924527768088
108752229009
113791450217
12184312b415
13a9633b344
145d0559b8d
1536358808e
hex209ac6a91

8752229009 has 8 divisors (see below), whose sum is σ = 8787349032. Its totient is φ = 8717155200.

The previous prime is 8752228993. The next prime is 8752229071. The reversal of 8752229009 is 9009222578.

It can be written as a sum of positive squares in 4 ways, for example, as 2594374225 + 6157854784 = 50935^2 + 78472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8752229009 - 24 = 8752228993 is a prime.

It is a super-2 number, since 2×87522290092 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8752229209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396467 + ... + 417959.

It is an arithmetic number, because the mean of its divisors is an integer number (1098418629).

Almost surely, 28752229009 is an apocalyptic number.

It is an amenable number.

8752229009 is a deficient number, since it is larger than the sum of its proper divisors (35120023).

8752229009 is a wasteful number, since it uses less digits than its factorization.

8752229009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23107.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 8752229009 is about 93553.3484649267. The cubic root of 8752229009 is about 2060.8176137534.

The spelling of 8752229009 in words is "eight billion, seven hundred fifty-two million, two hundred twenty-nine thousand, nine".

Divisors: 1 313 1301 21493 407213 6727309 27962393 8752229009