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1311141230 = 25718730589
BaseRepresentation
bin100111000100110…
…0110110101101110
310101101010212122022
41032021212311232
510141123004410
6334034150142
744330342120
oct11611466556
93341125568
101311141230
116131178a3
12307122352
1317b839119
14c61c1210
157a191455
hex4e266d6e

1311141230 has 16 divisors (see below), whose sum is σ = 2697204960. Its totient is φ = 449534112.

The previous prime is 1311141217. The next prime is 1311141233. The reversal of 1311141230 is 321411131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1311141199 and 1311141208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311141233) 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 7 ways as a sum of consecutive naturals, for example, 9365225 + ... + 9365364.

It is an arithmetic number, because the mean of its divisors is an integer number (168575310).

Almost surely, 21311141230 is an apocalyptic number.

1311141230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311141230 is an abundant number, since it is smaller than the sum of its proper divisors (1386063730).

1311141230 is a wasteful number, since it uses less digits than its factorization.

1311141230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18730603.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1311141230 is about 36209.6842018817. The cubic root of 1311141230 is about 1094.5018285327.

Adding to 1311141230 its reverse (321411131), we get a palindrome (1632552361).

The spelling of 1311141230 in words is "one billion, three hundred eleven million, one hundred forty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 18730589 37461178 93652945 131114123 187305890 262228246 655570615 1311141230