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805042210 = 25711500603
BaseRepresentation
bin101111111110111…
…111100000100010
32002002211101022011
4233332333200202
53122042322320
6211514503134
725643513560
oct5776774042
92062741264
10805042210
11383475145
121a5734aaa
13caa29c4b
1478cbca30
154aa2105a
hex2ffbf822

805042210 has 16 divisors (see below), whose sum is σ = 1656086976. Its totient is φ = 276014448.

The previous prime is 805042201. The next prime is 805042219. The reversal of 805042210 is 12240508.

It is an interprime number because it is at equal distance from previous prime (805042201) and next prime (805042219).

It is not an unprimeable number, because it can be changed into a prime (805042219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5750232 + ... + 5750371.

It is an arithmetic number, because the mean of its divisors is an integer number (103505436).

Almost surely, 2805042210 is an apocalyptic number.

805042210 is an abundant number, since it is smaller than the sum of its proper divisors (851044766).

805042210 is a wasteful number, since it uses less digits than its factorization.

805042210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500617.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 805042210 is about 28373.2657619809. The cubic root of 805042210 is about 930.2640056736.

Adding to 805042210 its reverse (12240508), we get a palindrome (817282718).

The spelling of 805042210 in words is "eight hundred five million, forty-two thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 11500603 23001206 57503015 80504221 115006030 161008442 402521105 805042210