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65219741 is a prime number
BaseRepresentation
bin1111100011001…
…0110010011101
311112201111122222
43320302302131
5113144012431
610245515125
71421234006
oct370626235
9145644588
1065219741
11338a6614
1219a12aa5
1310686a82
14893a1ad
155ad457b
hex3e32c9d

65219741 has 2 divisors, whose sum is σ = 65219742. Its totient is φ = 65219740.

The previous prime is 65219699. The next prime is 65219747. The reversal of 65219741 is 14791256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 11256025 = 7346^2 + 3355^2 .

It is a cyclic number.

It is not a de Polignac number, because 65219741 - 218 = 64957597 is a prime.

It is a super-2 number, since 2×652197412 = 8507229232214162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65219747) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32609870 + 32609871.

It is an arithmetic number, because the mean of its divisors is an integer number (32609871).

Almost surely, 265219741 is an apocalyptic number.

It is an amenable number.

65219741 is a deficient number, since it is larger than the sum of its proper divisors (1).

65219741 is an equidigital number, since it uses as much as digits as its factorization.

65219741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 65219741 is about 8075.8740084278. The cubic root of 65219741 is about 402.5251525503.

The spelling of 65219741 in words is "sixty-five million, two hundred nineteen thousand, seven hundred forty-one".