Base | Representation |
---|---|
bin | 1111100101110… |
… | …11110111110001 |
3 | 100010002222012011 |
4 | 13302323313301 |
5 | 231440333240 |
6 | 20551202521 |
7 | 3145502353 |
oct | 762736761 |
9 | 303088164 |
10 | 130792945 |
11 | 67913748 |
12 | 37976441 |
13 | 2113569a |
14 | 135290d3 |
15 | b7386ea |
hex | 7cbbdf1 |
130792945 has 12 divisors (see below), whose sum is σ = 158382900. Its totient is φ = 103684064.
The previous prime is 130792901. The next prime is 130793009. The reversal of 130792945 is 549297031.
It can be written as a sum of positive squares in 2 ways, for example, as 29669809 + 101123136 = 5447^2 + 10056^2 .
It is not a de Polignac number, because 130792945 - 225 = 97238513 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130792898 and 130792907.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311946 + ... + 312364.
It is an arithmetic number, because the mean of its divisors is an integer number (13198575).
Almost surely, 2130792945 is an apocalyptic number.
It is an amenable number.
130792945 is a deficient number, since it is larger than the sum of its proper divisors (27589955).
130792945 is an frugal number, since it uses more digits than its factorization.
130792945 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 992 (or 573 counting only the distinct ones).
The product of its (nonzero) digits is 68040, while the sum is 40.
The square root of 130792945 is about 11436.4743255953. The cubic root of 130792945 is about 507.6075887957.
The spelling of 130792945 in words is "one hundred thirty million, seven hundred ninety-two thousand, nine hundred forty-five".
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