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128970301 is a prime number
BaseRepresentation
bin1111010111111…
…10111000111101
322222200100222211
413223332320331
5231004022201
620444140421
73124141465
oct753767075
9288610884
10128970301
1166889329
1237237711
1320947bb5
14131b2ba5
15b4c8651
hex7afee3d

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".