Base | Representation |
---|---|
bin | 1111011111011… |
… | …10110001110100 |
3 | 100001112021211210 |
4 | 13233232301310 |
5 | 231231443014 |
6 | 20521201420 |
7 | 3135403245 |
oct | 757566164 |
9 | 301467753 |
10 | 129952884 |
11 | 6739a586 |
12 | 37630270 |
13 | 20c001c9 |
14 | 1338accc |
15 | b61e859 |
hex | 7beec74 |
129952884 has 12 divisors (see below), whose sum is σ = 303223424. Its totient is φ = 43317624.
The previous prime is 129952871. The next prime is 129952919. The reversal of 129952884 is 488259921.
It is a tau number, because it is divible by the number of its divisors (12).
It is a plaindrome in base 14.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5414692 + ... + 5414715.
Almost surely, 2129952884 is an apocalyptic number.
It is an amenable number.
129952884 is an abundant number, since it is smaller than the sum of its proper divisors (173270540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129952884 is a wasteful number, since it uses less digits than its factorization.
129952884 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10829414 (or 10829412 counting only the distinct ones).
The product of its digits is 414720, while the sum is 48.
The square root of 129952884 is about 11399.6878904644. The cubic root of 129952884 is about 506.5184944913.
The spelling of 129952884 in words is "one hundred twenty-nine million, nine hundred fifty-two thousand, eight hundred eighty-four".
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