Base | Representation |
---|---|
bin | 111111110011101… |
… | …1110011001011101 |
3 | 12112012202211200221 |
4 | 1333213132121131 |
5 | 13341102221212 |
6 | 552242121341 |
7 | 104025443365 |
oct | 17747363135 |
9 | 5465684627 |
10 | 2141054557 |
11 | 9a9629a84 |
12 | 4b9050251 |
13 | 2817636b5 |
14 | 1644d59a5 |
15 | c7e76807 |
hex | 7f9de65d |
2141054557 has 2 divisors, whose sum is σ = 2141054558. Its totient is φ = 2141054556.
The previous prime is 2141054467. The next prime is 2141054561. The reversal of 2141054557 is 7554501412.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1190319001 + 950735556 = 34501^2 + 30834^2 .
It is a cyclic number.
It is not a de Polignac number, because 2141054557 - 223 = 2132665949 is a prime.
It is a super-2 number, since 2×21410545572 = 9168229232100932498, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2141154557) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070527278 + 1070527279.
It is an arithmetic number, because the mean of its divisors is an integer number (1070527279).
Almost surely, 22141054557 is an apocalyptic number.
It is an amenable number.
2141054557 is a deficient number, since it is larger than the sum of its proper divisors (1).
2141054557 is an equidigital number, since it uses as much as digits as its factorization.
2141054557 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 28000, while the sum is 34.
The square root of 2141054557 is about 46271.5307397540. The cubic root of 2141054557 is about 1288.8703844321.
Adding to 2141054557 its reverse (7554501412), we get a palindrome (9695555969).
The spelling of 2141054557 in words is "two billion, one hundred forty-one million, fifty-four thousand, five hundred fifty-seven".
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