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1230323005 = 52398631193
BaseRepresentation
bin100100101010101…
…0011110100111101
310011202001212212201
41021111103310331
510004430314010
6322030031501
742326400352
oct11125236475
93152055781
101230323005
1158153797a
122a4048591
13167b804a2
14b9584629
157302a23a
hex49553d3d

1230323005 has 16 divisors (see below), whose sum is σ = 1485527040. Its totient is φ = 978183808.

The previous prime is 1230322991. The next prime is 1230323021. The reversal of 1230323005 is 5003230321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1230323005 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1030689 + ... + 1031881.

It is an arithmetic number, because the mean of its divisors is an integer number (92845440).

Almost surely, 21230323005 is an apocalyptic number.

It is an amenable number.

1230323005 is a deficient number, since it is larger than the sum of its proper divisors (255204035).

1230323005 is a wasteful number, since it uses less digits than its factorization.

1230323005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 1230323005 is about 35075.9605000348. The cubic root of 1230323005 is about 1071.5350503405.

Adding to 1230323005 its reverse (5003230321), we get a palindrome (6233553326).

The spelling of 1230323005 in words is "one billion, two hundred thirty million, three hundred twenty-three thousand, five".

Divisors: 1 5 239 863 1193 1195 4315 5965 206257 285127 1029559 1031285 1425635 5147795 246064601 1230323005