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128495033 is a prime number
BaseRepresentation
bin1111010100010…
…10110110111001
322221210020001022
413222022312321
5230343320113
620430032225
73120122042
oct752126671
9287706038
10128495033
1166594247
1237048675
132080c784
14130cb8c9
15b432908
hex7a8adb9

128495033 has 2 divisors, whose sum is σ = 128495034. Its totient is φ = 128495032.

The previous prime is 128495009. The next prime is 128495041. The reversal of 128495033 is 330594821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86918329 + 41576704 = 9323^2 + 6448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-128495033 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 128494984 and 128495002.

It is not a weakly prime, because it can be changed into another prime (128495063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64247516 + 64247517.

It is an arithmetic number, because the mean of its divisors is an integer number (64247517).

Almost surely, 2128495033 is an apocalyptic number.

It is an amenable number.

128495033 is a deficient number, since it is larger than the sum of its proper divisors (1).

128495033 is an equidigital number, since it uses as much as digits as its factorization.

128495033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 128495033 is about 11335.5649616594. The cubic root of 128495033 is about 504.6172743070.

The spelling of 128495033 in words is "one hundred twenty-eight million, four hundred ninety-five thousand, thirty-three".