Base | Representation |
---|---|
bin | 100101011000000… |
… | …1000000101010001 |
3 | 10020101212101221022 |
4 | 1022300020011101 |
5 | 10032024130001 |
6 | 324240205225 |
7 | 43035633455 |
oct | 11260100521 |
9 | 3211771838 |
10 | 1254130001 |
11 | 593a18483 |
12 | 2b0009815 |
13 | 16ca97677 |
14 | bc7c0665 |
15 | 7517e11b |
hex | 4ac08151 |
1254130001 has 4 divisors (see below), whose sum is σ = 1327902372. Its totient is φ = 1180357632.
The previous prime is 1254129997. The next prime is 1254130021. The reversal of 1254130001 is 1000314521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000314521 = 89 ⋅11239489.
It can be written as a sum of positive squares in 2 ways, for example, as 351187600 + 902942401 = 18740^2 + 30049^2 .
It is a cyclic number.
It is not a de Polignac number, because 1254130001 - 22 = 1254129997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 73772353 = 1254130001 / (1 + 2 + 5 + 4 + 1 + 3 + 0 + 0 + 0 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1254130021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36886160 + ... + 36886193.
It is an arithmetic number, because the mean of its divisors is an integer number (331975593).
Almost surely, 21254130001 is an apocalyptic number.
It is an amenable number.
1254130001 is a deficient number, since it is larger than the sum of its proper divisors (73772371).
1254130001 is an equidigital number, since it uses as much as digits as its factorization.
1254130001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73772370.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 1254130001 is about 35413.6979289088. The cubic root of 1254130001 is about 1078.4024164702.
Adding to 1254130001 its reverse (1000314521), we get a palindrome (2254444522).
The spelling of 1254130001 in words is "one billion, two hundred fifty-four million, one hundred thirty thousand, one".
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