Search a number
-
+
13243042230 = 23511241101881
BaseRepresentation
bin11000101010101100…
…01100100110110110
31021011221010020201120
430111112030212312
5204110204322410
610030032204410
7646114000365
oct142526144666
937157106646
1013243042230
115686396700
122697099706
131330849482
148d8b537dc
1552795e570
hex31558c9b6

13243042230 has 192 divisors, whose sum is σ = 36182801088. Its totient is φ = 3097600000.

The previous prime is 13243042217. The next prime is 13243042247. The reversal of 13243042230 is 3224034231.

13243042230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13243042230.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 15031390 + ... + 15032270.

It is an arithmetic number, because the mean of its divisors is an integer number (188452089).

Almost surely, 213243042230 is an apocalyptic number.

13243042230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13243042230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18091400544).

13243042230 is an abundant number, since it is smaller than the sum of its proper divisors (22939758858).

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

13243042230 is a wasteful number, since it uses less digits than its factorization.

13243042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13243042230 its reverse (3224034231), we get a palindrome (16467076461).

The spelling of 13243042230 in words is "thirteen billion, two hundred forty-three million, forty-two thousand, two hundred thirty".