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1230403134 = 23205067189
BaseRepresentation
bin100100101010110…
…0111011000111110
310011202012221210110
41021111213120332
510004440400014
6322031450450
742330153102
oct11125473076
93152187713
101230403134
115815920a4
122a4086a26
13167baaabc
14b95a5902
1573043d59
hex4956763e

1230403134 has 8 divisors (see below), whose sum is σ = 2460806280. Its totient is φ = 410134376.

The previous prime is 1230403133. The next prime is 1230403151. The reversal of 1230403134 is 4313040321.

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

1230403134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230403134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230403133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102533589 + ... + 102533600.

It is an arithmetic number, because the mean of its divisors is an integer number (307600785).

Almost surely, 21230403134 is an apocalyptic number.

1230403134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230403134 is a wasteful number, since it uses less digits than its factorization.

1230403134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205067194.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1230403134 is about 35077.1027024753. The cubic root of 1230403134 is about 1071.5583122990.

Adding to 1230403134 its reverse (4313040321), we get a palindrome (5543443455).

The spelling of 1230403134 in words is "one billion, two hundred thirty million, four hundred three thousand, one hundred thirty-four".

Divisors: 1 2 3 6 205067189 410134378 615201567 1230403134