Base | Representation |
---|---|
bin | 100100101010010… |
… | …0101001000011111 |
3 | 10011201201011111221 |
4 | 1021110211020133 |
5 | 10004403203433 |
6 | 322021554211 |
7 | 42324642631 |
oct | 11124451037 |
9 | 3151634457 |
10 | 1230131743 |
11 | 581417205 |
12 | 2a3b75967 |
13 | 167b14409 |
14 | b9534a51 |
15 | 72edd72d |
hex | 4952521f |
1230131743 has 2 divisors, whose sum is σ = 1230131744. Its totient is φ = 1230131742.
The previous prime is 1230131731. The next prime is 1230131753. The reversal of 1230131743 is 3471310321.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1230131743 - 229 = 693260831 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1230131723) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615065871 + 615065872.
It is an arithmetic number, because the mean of its divisors is an integer number (615065872).
Almost surely, 21230131743 is an apocalyptic number.
1230131743 is a deficient number, since it is larger than the sum of its proper divisors (1).
1230131743 is an equidigital number, since it uses as much as digits as its factorization.
1230131743 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 25.
The square root of 1230131743 is about 35073.2339968814. The cubic root of 1230131743 is about 1071.4795216821.
It can be divided in two parts, 12301 and 31743, that added together give a palindrome (44044).
The spelling of 1230131743 in words is "one billion, two hundred thirty million, one hundred thirty-one thousand, seven hundred forty-three".
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