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802394681 = 1131931729
BaseRepresentation
bin101111110100111…
…001001000111001
32001220211212120112
4233310321020321
53120403112211
6211342034105
725612146044
oct5764711071
92056755515
10802394681
11381a27000
121a4878935
13ca310b6a
14787cdc5b
154a69b88b
hex2fd39239

802394681 has 16 divisors (see below), whose sum is σ = 929054400. Its totient is φ = 691035840.

The previous prime is 802394647. The next prime is 802394683. The reversal of 802394681 is 186493208.

It is a de Polignac number, because none of the positive numbers 2k-802394681 is a prime.

It is a super-2 number, since 2×8023946812 = 1287674448194183522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (802394683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9425 + ... + 41153.

It is an arithmetic number, because the mean of its divisors is an integer number (58065900).

Almost surely, 2802394681 is an apocalyptic number.

It is an amenable number.

802394681 is a deficient number, since it is larger than the sum of its proper divisors (126659719).

802394681 is a wasteful number, since it uses less digits than its factorization.

802394681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31781 (or 31759 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 802394681 is about 28326.5719952133. The cubic root of 802394681 is about 929.2431044313.

The spelling of 802394681 in words is "eight hundred two million, three hundred ninety-four thousand, six hundred eighty-one".

Divisors: 1 11 19 121 209 1331 2299 25289 31729 349019 602851 3839209 6631361 42231299 72944971 802394681