Base | Representation |
---|---|
bin | 1111100001101… |
… | …01100111101010 |
3 | 100002002000212200 |
4 | 13300311213222 |
5 | 231320234200 |
6 | 20531321030 |
7 | 3141022230 |
oct | 760654752 |
9 | 302060780 |
10 | 130243050 |
11 | 67578593 |
12 | 37750176 |
13 | 20ca22c2 |
14 | 13424950 |
15 | b67a800 |
hex | 7c359ea |
130243050 has 144 divisors (see below), whose sum is σ = 403902720. Its totient is φ = 29473920.
The previous prime is 130243027. The next prime is 130243051. The reversal of 130243050 is 50342031.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130243051) 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, 544831 + ... + 545069.
It is an arithmetic number, because the mean of its divisors is an integer number (2804880).
Almost surely, 2130243050 is an apocalyptic number.
130243050 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 130243050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201951360).
130243050 is an abundant number, since it is smaller than the sum of its proper divisors (273659670).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130243050 is a wasteful number, since it uses less digits than its factorization.
130243050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 437 (or 429 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 130243050 is about 11412.4077214232. The cubic root of 130243050 is about 506.8952084345.
Adding to 130243050 its reverse (50342031), we get a palindrome (180585081).
The spelling of 130243050 in words is "one hundred thirty million, two hundred forty-three thousand, fifty".
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