Base | Representation |
---|---|
bin | 1111010111111… |
… | …10111000111101 |
3 | 22222200100222211 |
4 | 13223332320331 |
5 | 231004022201 |
6 | 20444140421 |
7 | 3124141465 |
oct | 753767075 |
9 | 288610884 |
10 | 128970301 |
11 | 66889329 |
12 | 37237711 |
13 | 20947bb5 |
14 | 131b2ba5 |
15 | b4c8651 |
hex | 7afee3d |
128970301 has 2 divisors, whose sum is σ = 128970302. Its totient is φ = 128970300.
The previous prime is 128970263. The next prime is 128970307. The reversal of 128970301 is 103079821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 83083225 + 45887076 = 9115^2 + 6774^2 .
It is a cyclic number.
It is not a de Polignac number, because 128970301 - 27 = 128970173 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (128970307) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64485150 + 64485151.
It is an arithmetic number, because the mean of its divisors is an integer number (64485151).
Almost surely, 2128970301 is an apocalyptic number.
It is an amenable number.
128970301 is a deficient number, since it is larger than the sum of its proper divisors (1).
128970301 is an equidigital number, since it uses as much as digits as its factorization.
128970301 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3024, while the sum is 31.
The square root of 128970301 is about 11356.5091907681. The cubic root of 128970301 is about 505.2386559449.
The spelling of 128970301 in words is "one hundred twenty-eight million, nine hundred seventy thousand, three hundred one".
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