Base | Representation |
---|---|
bin | 1111100111010… |
… | …11010110101010 |
3 | 100010110211222110 |
4 | 13303223112222 |
5 | 232013044214 |
6 | 20555303150 |
7 | 3150242364 |
oct | 763532652 |
9 | 303424873 |
10 | 130987434 |
11 | 67a36886 |
12 | 37a4aab6 |
13 | 211a3076 |
14 | 13579d34 |
15 | b776159 |
hex | 7ceb5aa |
130987434 has 16 divisors (see below), whose sum is σ = 266415840. Its totient is φ = 42922320.
The previous prime is 130987411. The next prime is 130987447. The reversal of 130987434 is 434789031.
It is a junction number, because it is equal to n+sod(n) for n = 130987392 and 130987401.
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, 184657 + ... + 185364.
It is an arithmetic number, because the mean of its divisors is an integer number (16650990).
Almost surely, 2130987434 is an apocalyptic number.
130987434 is an abundant number, since it is smaller than the sum of its proper divisors (135428406).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130987434 is a wasteful number, since it uses less digits than its factorization.
130987434 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 370085.
The product of its (nonzero) digits is 72576, while the sum is 39.
The square root of 130987434 is about 11444.9741808359. The cubic root of 130987434 is about 507.8590682072.
The spelling of 130987434 in words is "one hundred thirty million, nine hundred eighty-seven thousand, four hundred thirty-four".
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