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1230445353 = 31204334057
BaseRepresentation
bin100100101010111…
…0001101100101001
310011202022002201010
41021111301230221
510004443222403
6322032414133
742330420144
oct11125615451
93152262633
101230445353
11581610895
122a40a7349
13167bc4097
14b95b705b
1573051603
hex49571b29

1230445353 has 8 divisors (see below), whose sum is σ = 1640778208. Its totient is φ = 820204704.

The previous prime is 1230445331. The next prime is 1230445399. The reversal of 1230445353 is 3535440321.

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

It is a de Polignac number, because none of the positive numbers 2k-1230445353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230445353.

It is not an unprimeable number, because it can be changed into a prime (1230445753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19101 + ... + 53157.

It is an arithmetic number, because the mean of its divisors is an integer number (205097276).

Almost surely, 21230445353 is an apocalyptic number.

It is an amenable number.

1230445353 is a deficient number, since it is larger than the sum of its proper divisors (410332855).

1230445353 is a wasteful number, since it uses less digits than its factorization.

1230445353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46103.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 1230445353 is about 35077.7045001522. The cubic root of 1230445353 is about 1071.5705683371.

Adding to 1230445353 its reverse (3535440321), we get a palindrome (4765885674).

The spelling of 1230445353 in words is "one billion, two hundred thirty million, four hundred forty-five thousand, three hundred fifty-three".

Divisors: 1 3 12043 34057 36129 102171 410148451 1230445353