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1000309001 = 7243138107
BaseRepresentation
bin111011100111111…
…000000100001001
32120201020221222112
4323213320010021
54022034342001
6243132032105
733534325526
oct7347700411
92521227875
101000309001
11473714a5a
1223b002635
1312c317a23
1496bcc14d
155cc42cbb
hex3b9f8109

1000309001 has 4 divisors (see below), whose sum is σ = 1000454352. Its totient is φ = 1000163652.

The previous prime is 1000308973. The next prime is 1000309007. The reversal of 1000309001 is 1009030001.

1000309001 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.

It is a cyclic number.

It is not a de Polignac number, because 1000309001 - 26 = 1000308937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000309007) 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, 61811 + ... + 76296.

It is an arithmetic number, because the mean of its divisors is an integer number (250113588).

Almost surely, 21000309001 is an apocalyptic number.

It is an amenable number.

1000309001 is a deficient number, since it is larger than the sum of its proper divisors (145351).

1000309001 is an equidigital number, since it uses as much as digits as its factorization.

1000309001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145350.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1000309001 is about 31627.6619591142. The cubic root of 1000309001 is about 1000.1029897261.

Adding to 1000309001 its reverse (1009030001), we get a palindrome (2009339002).

The spelling of 1000309001 in words is "one billion, three hundred nine thousand, one".

Divisors: 1 7243 138107 1000309001