Base | Representation |
---|---|
bin | 1111011001011… |
… | …10001101100010 |
3 | 100000001012212200 |
4 | 13230232031202 |
5 | 231031223010 |
6 | 20452234030 |
7 | 3125606544 |
oct | 754561542 |
9 | 300035780 |
10 | 129164130 |
11 | 66a00a17 |
12 | 3730b916 |
13 | 209b51a4 |
14 | 13223694 |
15 | b515cc0 |
hex | 7b2e362 |
129164130 has 48 divisors (see below), whose sum is σ = 355585464. Its totient is φ = 32417280.
The previous prime is 129164117. The next prime is 129164149. The reversal of 129164130 is 31461921.
129164130 is a `hidden beast` number, since 12 + 9 + 1 + 641 + 3 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 129072321 + 91809 = 11361^2 + 303^2 .
It is a junction number, because it is equal to n+sod(n) for n = 129164094 and 129164103.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40681 + ... + 43740.
Almost surely, 2129164130 is an apocalyptic number.
129164130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
129164130 is an abundant number, since it is smaller than the sum of its proper divisors (226421334).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129164130 is a wasteful number, since it uses less digits than its factorization.
129164130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84451 (or 84448 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 129164130 is about 11365.0398151524. The cubic root of 129164130 is about 505.4916363704.
The spelling of 129164130 in words is "one hundred twenty-nine million, one hundred sixty-four thousand, one hundred thirty".
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