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8809842131 = 79111516989
BaseRepresentation
bin10000011010001101…
…11000010111010011
3211201222021100110022
420031012320113103
5121020304422011
64014105254055
7431213264636
oct101506702723
924658240408
108809842131
113810a20872
12185a49432b
13aa5260a4c
145d8075c1d
153686688db
hex20d1b85d3

8809842131 has 4 divisors (see below), whose sum is σ = 8921359200. Its totient is φ = 8698325064.

The previous prime is 8809842113. The next prime is 8809842133. The reversal of 8809842131 is 1312489088.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8809842131 - 210 = 8809841107 is a prime.

It is a super-2 number, since 2×88098421312 (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 (8809842133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55758416 + ... + 55758573.

It is an arithmetic number, because the mean of its divisors is an integer number (2230339800).

Almost surely, 28809842131 is an apocalyptic number.

8809842131 is a deficient number, since it is larger than the sum of its proper divisors (111517069).

8809842131 is a wasteful number, since it uses less digits than its factorization.

8809842131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111517068.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 8809842131 is about 93860.7592713803. The cubic root of 8809842131 is about 2065.3296287013.

The spelling of 8809842131 in words is "eight billion, eight hundred nine million, eight hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 79 111516989 8809842131