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1005452013 = 31917639509
BaseRepresentation
bin111011111011011…
…111101011101101
32121001221020212110
4323323133223231
54024343431023
6243434154233
733626125656
oct7373375355
92531836773
101005452013
11476607a85
12240882979
131303c8927
149776a52d
155d40ba93
hex3bedfaed

1005452013 has 8 divisors (see below), whose sum is σ = 1411160800. Its totient is φ = 635022288.

The previous prime is 1005452003. The next prime is 1005452017. The reversal of 1005452013 is 3102545001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1005452013 - 220 = 1004403437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005452017) 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 7 ways as a sum of consecutive naturals, for example, 8819698 + ... + 8819811.

It is an arithmetic number, because the mean of its divisors is an integer number (176395100).

Almost surely, 21005452013 is an apocalyptic number.

It is an amenable number.

1005452013 is a deficient number, since it is larger than the sum of its proper divisors (405708787).

1005452013 is a wasteful number, since it uses less digits than its factorization.

1005452013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17639531.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1005452013 is about 31708.8633192677. The cubic root of 1005452013 is about 1001.8140449178.

Adding to 1005452013 its reverse (3102545001), we get a palindrome (4107997014).

The spelling of 1005452013 in words is "one billion, five million, four hundred fifty-two thousand, thirteen".

Divisors: 1 3 19 57 17639509 52918527 335150671 1005452013