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1301223005 = 51097237233
BaseRepresentation
bin100110110001111…
…0001011001011101
310100200110222101122
41031203301121131
510131103114010
6333041420325
744150133035
oct11543613135
93320428348
101301223005
11608563115
1230393a6a5
13179775854
14c4b5c8c5
1579382855
hex4d8f165d

1301223005 has 8 divisors (see below), whose sum is σ = 1562897592. Its totient is φ = 1040025088.

The previous prime is 1301222977. The next prime is 1301223019. The reversal of 1301223005 is 5003221031.

It can be written as a sum of positive squares in 4 ways, for example, as 398641156 + 902581849 = 19966^2 + 30043^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1301223005 - 26 = 1301222941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113132 + ... + 124101.

It is an arithmetic number, because the mean of its divisors is an integer number (195362199).

Almost surely, 21301223005 is an apocalyptic number.

It is an amenable number.

1301223005 is a deficient number, since it is larger than the sum of its proper divisors (261674587).

1301223005 is a wasteful number, since it uses less digits than its factorization.

1301223005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238335.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1301223005 is about 36072.4687954678. The cubic root of 1301223005 is about 1091.7350268039.

Adding to 1301223005 its reverse (5003221031), we get a palindrome (6304444036).

The spelling of 1301223005 in words is "one billion, three hundred one million, two hundred twenty-three thousand, five".

Divisors: 1 5 1097 5485 237233 1186165 260244601 1301223005