Base | Representation |
---|---|
bin | 101101111001010… |
… | …1000111000111101 |
3 | 10222022210011200201 |
4 | 1123302220320331 |
5 | 11123220020331 |
6 | 412451323501 |
7 | 53106536554 |
oct | 13362507075 |
9 | 3868704621 |
10 | 1540001341 |
11 | 72032188a |
12 | 36b8b0591 |
13 | 1b70895c8 |
14 | 108756d9b |
15 | 902eba61 |
hex | 5bca8e3d |
1540001341 has 2 divisors, whose sum is σ = 1540001342. Its totient is φ = 1540001340.
The previous prime is 1540001329. The next prime is 1540001429. The reversal of 1540001341 is 1431000451.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 952956900 + 587044441 = 30870^2 + 24229^2 .
It is an emirp because it is prime and its reverse (1431000451) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1540001341 - 219 = 1539477053 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1540001741) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770000670 + 770000671.
It is an arithmetic number, because the mean of its divisors is an integer number (770000671).
Almost surely, 21540001341 is an apocalyptic number.
It is an amenable number.
1540001341 is a deficient number, since it is larger than the sum of its proper divisors (1).
1540001341 is an equidigital number, since it uses as much as digits as its factorization.
1540001341 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 1540001341 is about 39242.8508266155. The cubic root of 1540001341 is about 1154.8006854835.
Adding to 1540001341 its reverse (1431000451), we get a palindrome (2971001792).
The spelling of 1540001341 in words is "one billion, five hundred forty million, one thousand, three hundred forty-one".
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