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128258203 is a prime number
BaseRepresentation
bin1111010010100…
…01000010011011
322221100012011211
413221101002123
5230313230303
620421003551
73115114423
oct751210233
9287305154
10128258203
1166442317
1236b535b7
1320758a38
1413069483
15b3d766d
hex7a5109b

128258203 has 2 divisors, whose sum is σ = 128258204. Its totient is φ = 128258202.

The previous prime is 128258201. The next prime is 128258231. The reversal of 128258203 is 302852821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128258203 - 21 = 128258201 is a prime.

Together with 128258201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128258201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64129101 + 64129102.

It is an arithmetic number, because the mean of its divisors is an integer number (64129102).

Almost surely, 2128258203 is an apocalyptic number.

128258203 is a deficient number, since it is larger than the sum of its proper divisors (1).

128258203 is an equidigital number, since it uses as much as digits as its factorization.

128258203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 128258203 is about 11325.1138184126. The cubic root of 128258203 is about 504.3070625584.

The spelling of 128258203 in words is "one hundred twenty-eight million, two hundred fifty-eight thousand, two hundred three".