Base | Representation |
---|---|
bin | 1111100101001… |
… | …10000101110011 |
3 | 100002221102210221 |
4 | 13302212011303 |
5 | 231430004411 |
6 | 20545233511 |
7 | 3144651304 |
oct | 762460563 |
9 | 302842727 |
10 | 130703731 |
11 | 67862714 |
12 | 37932897 |
13 | 21103bb2 |
14 | 135047ab |
15 | b71c071 |
hex | 7ca6173 |
130703731 has 2 divisors, whose sum is σ = 130703732. Its totient is φ = 130703730.
The previous prime is 130703693. The next prime is 130703737. The reversal of 130703731 is 137307031.
It is a strong prime.
It is an emirp because it is prime and its reverse (137307031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130703731 - 29 = 130703219 is a prime.
It is a super-2 number, since 2×1307037312 = 34166930594640722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 130703696 and 130703705.
It is not a weakly prime, because it can be changed into another prime (130703737) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65351865 + 65351866.
It is an arithmetic number, because the mean of its divisors is an integer number (65351866).
Almost surely, 2130703731 is an apocalyptic number.
130703731 is a deficient number, since it is larger than the sum of its proper divisors (1).
130703731 is an equidigital number, since it uses as much as digits as its factorization.
130703731 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1323, while the sum is 25.
The square root of 130703731 is about 11432.5732448999. The cubic root of 130703731 is about 507.4921493281.
The spelling of 130703731 in words is "one hundred thirty million, seven hundred three thousand, seven hundred thirty-one".
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