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1005032013 = 3335010671
BaseRepresentation
bin111011111001111…
…001001001001101
32121001010220201220
4323321321021031
54024242011023
6243421153553
733622426326
oct7371711115
92531126656
101005032013
11476350477
122406bb8b9
131302ac6cb
149769b44d
155d3773e3
hex3be7924d

1005032013 has 4 divisors (see below), whose sum is σ = 1340042688. Its totient is φ = 670021340.

The previous prime is 1005032009. The next prime is 1005032023. The reversal of 1005032013 is 3102305001.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 3102305001 = 31034101667.

It is a cyclic number.

It is not a de Polignac number, because 1005032013 - 22 = 1005032009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1005031983 and 1005032001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005032023) 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, 167505333 + ... + 167505338.

It is an arithmetic number, because the mean of its divisors is an integer number (335010672).

Almost surely, 21005032013 is an apocalyptic number.

It is an amenable number.

1005032013 is a deficient number, since it is larger than the sum of its proper divisors (335010675).

1005032013 is an equidigital number, since it uses as much as digits as its factorization.

1005032013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335010674.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1005032013 is about 31702.2398735484. The cubic root of 1005032013 is about 1001.6745320439.

Adding to 1005032013 its reverse (3102305001), we get a palindrome (4107337014).

The spelling of 1005032013 in words is "one billion, five million, thirty-two thousand, thirteen".

Divisors: 1 3 335010671 1005032013