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1230441305 = 53123413391
BaseRepresentation
bin100100101010111…
…0000101101011001
310011202021220011012
41021111300231121
510004443110210
6322032343305
742330402302
oct11125605531
93152256135
101230441305
11581608845
122a40a4b35
13167bc22a2
14b95b57a9
1573050305
hex49570b59

1230441305 has 16 divisors (see below), whose sum is σ = 1525260288. Its totient is φ = 951912000.

The previous prime is 1230441299. The next prime is 1230441343. The reversal of 1230441305 is 5031440321.

It is a de Polignac number, because none of the positive numbers 2k-1230441305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361160 + ... + 364550.

It is an arithmetic number, because the mean of its divisors is an integer number (95328768).

Almost surely, 21230441305 is an apocalyptic number.

It is an amenable number.

1230441305 is a deficient number, since it is larger than the sum of its proper divisors (294818983).

1230441305 is a wasteful number, since it uses less digits than its factorization.

1230441305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1230441305 is about 35077.6467996358. The cubic root of 1230441305 is about 1071.5693932280.

Adding to 1230441305 its reverse (5031440321), we get a palindrome (6261881626).

The spelling of 1230441305 in words is "one billion, two hundred thirty million, four hundred forty-one thousand, three hundred five".

Divisors: 1 5 31 155 2341 3391 11705 16955 72571 105121 362855 525605 7938331 39691655 246088261 1230441305