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815412709306 = 213289155917387
BaseRepresentation
bin10111101110110100110…
…00101000011110111010
32212221201111212111102001
423313122120220132322
5101324431123144211
61422332340131214
7112624454445406
oct13673230503672
92787644774361
10815412709306
112948a6242388
12112048096b0a
135bb7c166b00
142b6752dc106
151632647aac1
hexbdda6287ba

815412709306 has 48 divisors (see below), whose sum is σ = 1340260084800. Its totient is φ = 371855662464.

The previous prime is 815412709303. The next prime is 815412709343. The reversal of 815412709306 is 603907214518.

It is not an unprimeable number, because it can be changed into a prime (815412709303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46889145 + ... + 46906531.

It is an arithmetic number, because the mean of its divisors is an integer number (27922085100).

It is a 1-persistent number, because it is pandigital, but 2⋅815412709306 = 1630825418612 is not.

Almost surely, 2815412709306 is an apocalyptic number.

815412709306 is a deficient number, since it is larger than the sum of its proper divisors (524847375494).

815412709306 is a wasteful number, since it uses less digits than its factorization.

815412709306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19063 (or 19050 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 815412709306 in words is "eight hundred fifteen billion, four hundred twelve million, seven hundred nine thousand, three hundred six".

Divisors: 1 2 13 26 89 169 178 338 1157 1559 2314 3118 15041 17387 20267 30082 34774 40534 138751 226031 263471 277502 452062 526942 1547443 1803763 2938403 3094886 3607526 5876806 20116759 23448919 27106333 40233518 46897838 54212666 261517867 352382329 523035734 704764658 2412463637 4580970277 4824927274 9161940554 31362027281 62724054562 407706354653 815412709306