Base | Representation |
---|---|
bin | 1101001000100100… |
… | …00100000111000101 |
3 | 200012102000100112211 |
4 | 12210102010013011 |
5 | 103420044304044 |
6 | 3123402543421 |
7 | 336506631466 |
oct | 64422040705 |
9 | 20172010484 |
10 | 7051166149 |
11 | 2a99221545 |
12 | 1449507b71 |
13 | 884aac081 |
14 | 4ac678d6d |
15 | 2b4074634 |
hex | 1a44841c5 |
7051166149 has 2 divisors, whose sum is σ = 7051166150. Its totient is φ = 7051166148.
The previous prime is 7051166123. The next prime is 7051166153. The reversal of 7051166149 is 9416611507.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 4687456225 + 2363709924 = 68465^2 + 48618^2 .
It is an emirp because it is prime and its reverse (9416611507) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7051166149 - 213 = 7051157957 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7051166119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525583074 + 3525583075.
It is an arithmetic number, because the mean of its divisors is an integer number (3525583075).
Almost surely, 27051166149 is an apocalyptic number.
It is an amenable number.
7051166149 is a deficient number, since it is larger than the sum of its proper divisors (1).
7051166149 is an equidigital number, since it uses as much as digits as its factorization.
7051166149 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 45360, while the sum is 40.
The square root of 7051166149 is about 83971.2221478287. Note that the first 3 decimals coincide. The cubic root of 7051166149 is about 1917.5806974952.
The spelling of 7051166149 in words is "seven billion, fifty-one million, one hundred sixty-six thousand, one hundred forty-nine".
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