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1005070993 = 3160731799
BaseRepresentation
bin111011111010000…
…010101010010001
32121001012220012121
4323322002222101
54024244232433
6243422054241
733622651063
oct7372025221
92531186177
101005070993
11476377793
1224071a381
131302c4384
14976ab733
155d383c2d
hex3be82a91

1005070993 has 4 divisors (see below), whose sum is σ = 1005134400. Its totient is φ = 1005007588.

The previous prime is 1005070973. The next prime is 1005071021. The reversal of 1005070993 is 3990705001.

1005070993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3990705001 = 17234747353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1005070993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005070973) 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, 15708 + ... + 47506.

It is an arithmetic number, because the mean of its divisors is an integer number (251283600).

Almost surely, 21005070993 is an apocalyptic number.

It is an amenable number.

1005070993 is a deficient number, since it is larger than the sum of its proper divisors (63407).

1005070993 is an equidigital number, since it uses as much as digits as its factorization.

1005070993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63406.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1005070993 is about 31702.8546506462. The cubic root of 1005070993 is about 1001.6874818034.

Adding to 1005070993 its reverse (3990705001), we get a palindrome (4995775994).

The spelling of 1005070993 in words is "one billion, five million, seventy thousand, nine hundred ninety-three".

Divisors: 1 31607 31799 1005070993