Base | Representation |
---|---|
bin | 101001001001110… |
… | …0111011110001011 |
3 | 10120020100200012001 |
4 | 1102103213132023 |
5 | 10312000432443 |
6 | 345004531431 |
7 | 46135144036 |
oct | 12223473613 |
9 | 3506320161 |
10 | 1380874123 |
11 | 649516192 |
12 | 326550b77 |
13 | 1901131a5 |
14 | d157401d |
15 | 81367d4d |
hex | 524e778b |
1380874123 has 2 divisors, whose sum is σ = 1380874124. Its totient is φ = 1380874122.
The previous prime is 1380874111. The next prime is 1380874129. The reversal of 1380874123 is 3214780831.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1380874123 - 217 = 1380743051 is a prime.
It is not a weakly prime, because it can be changed into another prime (1380874129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690437061 + 690437062.
It is an arithmetic number, because the mean of its divisors is an integer number (690437062).
Almost surely, 21380874123 is an apocalyptic number.
1380874123 is a deficient number, since it is larger than the sum of its proper divisors (1).
1380874123 is an equidigital number, since it uses as much as digits as its factorization.
1380874123 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 32256, while the sum is 37.
The square root of 1380874123 is about 37160.1146795862. The cubic root of 1380874123 is about 1113.5713026422.
The spelling of 1380874123 in words is "one billion, three hundred eighty million, eight hundred seventy-four thousand, one hundred twenty-three".
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