Base | Representation |
---|---|
bin | 1111011110111… |
… | …10000000000000 |
3 | 100001101210120110 |
4 | 13233132000000 |
5 | 231222243120 |
6 | 20515511320 |
7 | 3134666010 |
oct | 757360000 |
9 | 301353513 |
10 | 129884160 |
11 | 6735298a |
12 | 375b8540 |
13 | 20ba7b43 |
14 | 1336dc40 |
15 | b6092e0 |
hex | 7bde000 |
129884160 has 224 divisors, whose sum is σ = 478121472. Its totient is φ = 29491200.
The previous prime is 129884159. The next prime is 129884177. The reversal of 129884160 is 61488921.
It is a tau number, because it is divible by the number of its divisors (224).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860085 + ... + 860235.
Almost surely, 2129884160 is an apocalyptic number.
129884160 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 129884160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239060736).
129884160 is an abundant number, since it is smaller than the sum of its proper divisors (348237312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129884160 is an equidigital number, since it uses as much as digits as its factorization.
129884160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 192 (or 168 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 39.
The square root of 129884160 is about 11396.6731987892. The cubic root of 129884160 is about 506.4291900347.
It can be divided in two parts, 1298 and 84160, that added together give a palindrome (85458).
The spelling of 129884160 in words is "one hundred twenty-nine million, eight hundred eighty-four thousand, one hundred sixty".
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