Search a number
-
+
13110121200 = 243521117371579
BaseRepresentation
bin11000011010110110…
…01001001011110000
31020211200000011100110
430031123021023300
5203322142334300
610004523221320
7642611122461
oct141533111360
936750004313
1013110121200
11561835a110
12265a677840
13130c14a287
148c5232d68
1551ae55550
hex30d6c92f0

13110121200 has 480 divisors, whose sum is σ = 49851452160. Its totient is φ = 2908569600.

The previous prime is 13110121153. The next prime is 13110121207. The reversal of 13110121200 is 212101131.

It is a super-4 number, since 4×131101212004 (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13110121207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8302011 + ... + 8303589.

It is an arithmetic number, because the mean of its divisors is an integer number (103857192).

Almost surely, 213110121200 is an apocalyptic number.

13110121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13110121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24925726080).

13110121200 is an abundant number, since it is smaller than the sum of its proper divisors (36741330960).

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

13110121200 is a wasteful number, since it uses less digits than its factorization.

13110121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 13110121200 its reverse (212101131), we get a palindrome (13322222331).

The spelling of 13110121200 in words is "thirteen billion, one hundred ten million, one hundred twenty-one thousand, two hundred".