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8909759909 = 79870712953
BaseRepresentation
bin10000100110001000…
…00010010110100101
3211222221021200212202
420103010002112211
5121221344304114
64032035024245
7433535465261
oct102304022645
924887250782
108909759909
113862366546
121887a3b085
13abcb75cab
146074450a1
15372303cde
hex2131025a5

8909759909 has 8 divisors (see below), whose sum is σ = 9024274560. Its totient is φ = 8795288736.

The previous prime is 8909759899. The next prime is 8909759939. The reversal of 8909759909 is 9099579098.

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 8909759909 - 24 = 8909759893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8909759939) 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, 681377 + ... + 694329.

It is an arithmetic number, because the mean of its divisors is an integer number (1128034320).

Almost surely, 28909759909 is an apocalyptic number.

It is an amenable number.

8909759909 is a deficient number, since it is larger than the sum of its proper divisors (114514651).

8909759909 is a wasteful number, since it uses less digits than its factorization.

8909759909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21739.

The product of its (nonzero) digits is 16533720, while the sum is 65.

The square root of 8909759909 is about 94391.5245612656. The cubic root of 8909759909 is about 2073.1083478437.

The spelling of 8909759909 in words is "eight billion, nine hundred nine million, seven hundred fifty-nine thousand, nine hundred nine".

Divisors: 1 79 8707 12953 687853 1023287 112781771 8909759909