Base | Representation |
---|---|
bin | 1111100100011… |
… | …10000111101101 |
3 | 100002202110010120 |
4 | 13302032013231 |
5 | 231413334144 |
6 | 20543155153 |
7 | 3144062124 |
oct | 762160755 |
9 | 302673116 |
10 | 130605549 |
11 | 677a5978 |
12 | 378a5ab9 |
13 | 2109b2b9 |
14 | 134baabb |
15 | b6ece19 |
hex | 7c8e1ed |
130605549 has 8 divisors (see below), whose sum is σ = 174461280. Its totient is φ = 86910096.
The previous prime is 130605547. The next prime is 130605571. The reversal of 130605549 is 945506031.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130605549 - 21 = 130605547 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130605547) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38154 + ... + 41435.
It is an arithmetic number, because the mean of its divisors is an integer number (21807660).
Almost surely, 2130605549 is an apocalyptic number.
It is an amenable number.
130605549 is a deficient number, since it is larger than the sum of its proper divisors (43855731).
130605549 is an equidigital number, since it uses as much as digits as its factorization.
130605549 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80139.
The product of its (nonzero) digits is 16200, while the sum is 33.
The square root of 130605549 is about 11428.2784792811. The cubic root of 130605549 is about 507.3650448829.
The spelling of 130605549 in words is "one hundred thirty million, six hundred five thousand, five hundred forty-nine".
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