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999815041 is a prime number
BaseRepresentation
bin111011100101111…
…111011110000001
32120200022212101201
4323211333132001
54021423040131
6243113301201
733530200441
oct7345773601
92520285351
10999815041
11473407925
1223aa04801
1312c1a3c44
1496b00121
155cb96761
hex3b97f781

999815041 has 2 divisors, whose sum is σ = 999815042. Its totient is φ = 999815040.

The previous prime is 999815039. The next prime is 999815051. The reversal of 999815041 is 140518999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848032641 + 151782400 = 29121^2 + 12320^2 .

It is an emirp because it is prime and its reverse (140518999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999815041 - 21 = 999815039 is a prime.

Together with 999815039, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p50838589 and since 999815041 and 50838589 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 999814982 and 999815000.

It is not a weakly prime, because it can be changed into another prime (999815051) 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 as a sum of consecutive naturals, namely, 499907520 + 499907521.

It is an arithmetic number, because the mean of its divisors is an integer number (499907521).

Almost surely, 2999815041 is an apocalyptic number.

It is an amenable number.

999815041 is a deficient number, since it is larger than the sum of its proper divisors (1).

999815041 is an equidigital number, since it uses as much as digits as its factorization.

999815041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 999815041 is about 31619.8520078763. The cubic root of 999815041 is about 999.9383431985.

The spelling of 999815041 in words is "nine hundred ninety-nine million, eight hundred fifteen thousand, forty-one".