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65372849 is a prime number
BaseRepresentation
bin1111100101100…
…0001010110001
311120000021200122
43321120022301
5113213412344
610253100025
71422442253
oct371301261
9146007618
1065372849
11339a0653
1219a87615
131070b679
148979cd3
155b14aee
hex3e582b1

65372849 has 2 divisors, whose sum is σ = 65372850. Its totient is φ = 65372848.

The previous prime is 65372789. The next prime is 65372851. The reversal of 65372849 is 94827356.

65372849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 8596624 = 7535^2 + 2932^2 .

It is a cyclic number.

It is not a de Polignac number, because 65372849 - 212 = 65368753 is a prime.

Together with 65372851, 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 (65372899) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32686424 + 32686425.

It is an arithmetic number, because the mean of its divisors is an integer number (32686425).

Almost surely, 265372849 is an apocalyptic number.

It is an amenable number.

65372849 is a deficient number, since it is larger than the sum of its proper divisors (1).

65372849 is an equidigital number, since it uses as much as digits as its factorization.

65372849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 65372849 is about 8085.3477970957. The cubic root of 65372849 is about 402.8398919023.

The spelling of 65372849 in words is "sixty-five million, three hundred seventy-two thousand, eight hundred forty-nine".