Base | Representation |
---|---|
bin | 1111100010000… |
… | …01000000111100 |
3 | 100002011101220100 |
4 | 13301001000330 |
5 | 231323232344 |
6 | 20532321100 |
7 | 3141305265 |
oct | 761010074 |
9 | 302141810 |
10 | 130289724 |
11 | 675aa664 |
12 | 37773190 |
13 | 20cba616 |
14 | 1343796c |
15 | b689569 |
hex | 7c4103c |
130289724 has 18 divisors (see below), whose sum is σ = 329343560. Its totient is φ = 43429896.
The previous prime is 130289713. The next prime is 130289737. The reversal of 130289724 is 427982031.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3619159 = 130289724 / (1 + 3 + 0 + 2 + 8 + 9 + 7 + 2 + 4).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1809544 + ... + 1809615.
Almost surely, 2130289724 is an apocalyptic number.
It is an amenable number.
130289724 is an abundant number, since it is smaller than the sum of its proper divisors (199053836).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130289724 is a wasteful number, since it uses less digits than its factorization.
130289724 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3619169 (or 3619164 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The square root of 130289724 is about 11414.4524178780. The cubic root of 130289724 is about 506.9557516558.
The spelling of 130289724 in words is "one hundred thirty million, two hundred eighty-nine thousand, seven hundred twenty-four".
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