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128852201 is a prime number
BaseRepresentation
bin1111010111000…
…10000011101001
322222110100222202
413223202003221
5230441232301
620441425545
73123140252
oct753420351
9288410882
10128852201
1166808625
123719b2b5
132090620a
1413181b29
15b4a366b
hex7ae20e9

128852201 has 2 divisors, whose sum is σ = 128852202. Its totient is φ = 128852200.

The previous prime is 128852183. The next prime is 128852203. The reversal of 128852201 is 102258821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123187801 + 5664400 = 11099^2 + 2380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-128852201 is a prime.

Together with 128852203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128852203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64426100 + 64426101.

It is an arithmetic number, because the mean of its divisors is an integer number (64426101).

Almost surely, 2128852201 is an apocalyptic number.

It is an amenable number.

128852201 is a deficient number, since it is larger than the sum of its proper divisors (1).

128852201 is an equidigital number, since it uses as much as digits as its factorization.

128852201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 128852201 is about 11351.3083386894. The cubic root of 128852201 is about 505.0843906936.

The spelling of 128852201 in words is "one hundred twenty-eight million, eight hundred fifty-two thousand, two hundred one".