Base | Representation |
---|---|
bin | 100011110011011… |
… | …0000010001100101 |
3 | 10002201112110210011 |
4 | 1013212300101211 |
5 | 4430020412131 |
6 | 315112530221 |
7 | 41525143321 |
oct | 10746602145 |
9 | 3081473704 |
10 | 1201341541 |
11 | 567142754 |
12 | 2963b0971 |
13 | 161b73caa |
14 | b579c981 |
15 | 707030b1 |
hex | 479b0465 |
1201341541 has 2 divisors, whose sum is σ = 1201341542. Its totient is φ = 1201341540.
The previous prime is 1201341527. The next prime is 1201341563. The reversal of 1201341541 is 1451431021.
It is an a-pointer prime, because the next prime (1201341563) can be obtained adding 1201341541 to its sum of digits (22).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 631516900 + 569824641 = 25130^2 + 23871^2 .
It is an emirp because it is prime and its reverse (1451431021) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1201341541 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1201341511) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600670770 + 600670771.
It is an arithmetic number, because the mean of its divisors is an integer number (600670771).
Almost surely, 21201341541 is an apocalyptic number.
It is an amenable number.
1201341541 is a deficient number, since it is larger than the sum of its proper divisors (1).
1201341541 is an equidigital number, since it uses as much as digits as its factorization.
1201341541 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 1201341541 is about 34660.3742189838. The cubic root of 1201341541 is about 1063.0544217157.
Adding to 1201341541 its reverse (1451431021), we get a palindrome (2652772562).
The spelling of 1201341541 in words is "one billion, two hundred one million, three hundred forty-one thousand, five hundred forty-one".
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