Base | Representation |
---|---|
bin | 1111011111111… |
… | …10111010000000 |
3 | 100001122122110110 |
4 | 13233332322000 |
5 | 231241101234 |
6 | 20522431320 |
7 | 3136066656 |
oct | 757767200 |
9 | 301578413 |
10 | 130018944 |
11 | 67435180 |
12 | 37662540 |
13 | 20c242b3 |
14 | 133a6dd6 |
15 | b6341e9 |
hex | 7bfee80 |
130018944 has 64 divisors (see below), whose sum is σ = 376771680. Its totient is φ = 39398400.
The previous prime is 130018939. The next prime is 130018951. The reversal of 130018944 is 449810031.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (64).
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 7 ways as a sum of consecutive naturals, for example, 11167 + ... + 19614.
Almost surely, 2130018944 is an apocalyptic number.
It is an amenable number.
130018944 is an abundant number, since it is smaller than the sum of its proper divisors (246752736).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130018944 is a wasteful number, since it uses less digits than its factorization.
130018944 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30809 (or 30797 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 130018944 is about 11402.5849700846. The cubic root of 130018944 is about 506.6043074992.
Adding to 130018944 its reverse (449810031), we get a palindrome (579828975).
It can be divided in two parts, 13001 and 8944, that added together give a triangular number (21945 = T209).
The spelling of 130018944 in words is "one hundred thirty million, eighteen thousand, nine hundred forty-four".
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