Base | Representation |
---|---|
bin | 1111010001101… |
… | …10111001110101 |
3 | 22221010202100011 |
4 | 13220312321311 |
5 | 230301314112 |
6 | 20414420221 |
7 | 3114160351 |
oct | 750667165 |
9 | 287122304 |
10 | 128151157 |
11 | 66379952 |
12 | 36b01671 |
13 | 2071c0b4 |
14 | 1303c461 |
15 | b3b5aa7 |
hex | 7a36e75 |
128151157 has 2 divisors, whose sum is σ = 128151158. Its totient is φ = 128151156.
The previous prime is 128151103. The next prime is 128151161. The reversal of 128151157 is 751151821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 73376356 + 54774801 = 8566^2 + 7401^2 .
It is a cyclic number.
It is not a de Polignac number, because 128151157 - 219 = 127626869 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (128151167) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64075578 + 64075579.
It is an arithmetic number, because the mean of its divisors is an integer number (64075579).
Almost surely, 2128151157 is an apocalyptic number.
It is an amenable number.
128151157 is a deficient number, since it is larger than the sum of its proper divisors (1).
128151157 is an equidigital number, since it uses as much as digits as its factorization.
128151157 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2800, while the sum is 31.
The square root of 128151157 is about 11320.3867866783. The cubic root of 128151157 is about 504.1667230502.
The spelling of 128151157 in words is "one hundred twenty-eight million, one hundred fifty-one thousand, one hundred fifty-seven".
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