Base | Representation |
---|---|
bin | 11000011100011010… |
… | …11101001000110010 |
3 | 1020212120211020011100 |
4 | 30032031131020302 |
5 | 203334031411010 |
6 | 10010114025230 |
7 | 643131203250 |
oct | 141615351062 |
9 | 36776736140 |
10 | 13123310130 |
11 | 5624848157 |
12 | 2662b78216 |
13 | 1311ab7488 |
14 | 8c6ca75d0 |
15 | 51c1ad2c0 |
hex | 30e35d232 |
13123310130 has 144 divisors (see below), whose sum is σ = 39268861632. Its totient is φ = 2978683200.
The previous prime is 13123310119. The next prime is 13123310131. The reversal of 13123310130 is 3101332131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13123310131) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22982745 + ... + 22983315.
It is an arithmetic number, because the mean of its divisors is an integer number (272700428).
Almost surely, 213123310130 is an apocalyptic number.
13123310130 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 13123310130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19634430816).
13123310130 is an abundant number, since it is smaller than the sum of its proper divisors (26145551502).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13123310130 is a wasteful number, since it uses less digits than its factorization.
13123310130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 973 (or 779 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 13123310130 its reverse (3101332131), we get a palindrome (16224642261).
The spelling of 13123310130 in words is "thirteen billion, one hundred twenty-three million, three hundred ten thousand, one hundred thirty".
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