Search a number
-
+
1311423031230 = 235133362623157
BaseRepresentation
bin10011000101010110111…
…001110110011110111110
311122101000022210120012220
4103011112321312132332
5132441243243444410
62442243122510210
7163514166561414
oct23052671663676
94571008716186
101311423031230
11466198126674
121921b4b05366
1396888868410
144768a6d72b4
15241a6bc7070
hex13156e767be

1311423031230 has 32 divisors (see below), whose sum is σ = 3389524143264. Its totient is φ = 322811822976.

The previous prime is 1311423031223. The next prime is 1311423031339. The reversal of 1311423031230 is 321303241131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311423031230.

It is a congruent 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, 1681311189 + ... + 1681311968.

It is an arithmetic number, because the mean of its divisors is an integer number (105922629477).

Almost surely, 21311423031230 is an apocalyptic number.

1311423031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311423031230 is an abundant number, since it is smaller than the sum of its proper divisors (2078101112034).

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

1311423031230 is a wasteful number, since it uses less digits than its factorization.

1311423031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362623180.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1311423031230 its reverse (321303241131), we get a palindrome (1632726272361).

The spelling of 1311423031230 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 3362623157 6725246314 10087869471 16813115785 20175738942 33626231570 43714101041 50439347355 87428202082 100878694710 131142303123 218570505205 262284606246 437141010410 655711515615 1311423031230