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65707049 is a prime number
BaseRepresentation
bin1111101010100…
…1110000101001
311120122021010102
43322221300221
5113310111144
610304155145
71425333512
oct372516051
9146567112
1065707049
11340a9751
121a008ab5
13107c7815
148a25a09
155b7db4e
hex3ea9c29

65707049 has 2 divisors, whose sum is σ = 65707050. Its totient is φ = 65707048.

The previous prime is 65707039. The next prime is 65707123. The reversal of 65707049 is 94070756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 25321024 = 6355^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 65707049 - 212 = 65702953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65707039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32853524 + 32853525.

It is an arithmetic number, because the mean of its divisors is an integer number (32853525).

Almost surely, 265707049 is an apocalyptic number.

It is an amenable number.

65707049 is a deficient number, since it is larger than the sum of its proper divisors (1).

65707049 is an equidigital number, since it uses as much as digits as its factorization.

65707049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 65707049 is about 8105.9884653261. The cubic root of 65707049 is about 403.5251933473.

The spelling of 65707049 in words is "sixty-five million, seven hundred seven thousand, forty-nine".