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8809840031 = 77311396947
BaseRepresentation
bin10000011010001101…
…10111110110011111
3211201222021020120112
420031012313312133
5121020304340111
64014105240235
7431213255546
oct101506676637
924658236515
108809840031
113810a1a233
12185a49307b
13aa525cac5
145d807515d
15368667e8b
hex20d1b7d9f

8809840031 has 4 divisors (see below), whose sum is σ = 8821237752. Its totient is φ = 8798442312.

The previous prime is 8809840009. The next prime is 8809840049. The reversal of 8809840031 is 1300489088.

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 8809840031 - 210 = 8809839007 is a prime.

It is a super-2 number, since 2×88098400312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8809840231) 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, 5697701 + ... + 5699246.

It is an arithmetic number, because the mean of its divisors is an integer number (2205309438).

Almost surely, 28809840031 is an apocalyptic number.

8809840031 is a deficient number, since it is larger than the sum of its proper divisors (11397721).

8809840031 is a wasteful number, since it uses less digits than its factorization.

8809840031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397720.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8809840031 is about 93860.7480845960. The cubic root of 8809840031 is about 2065.3294645972.

The spelling of 8809840031 in words is "eight billion, eight hundred nine million, eight hundred forty thousand, thirty-one".

Divisors: 1 773 11396947 8809840031