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64208741 is a prime number
BaseRepresentation
bin1111010011101…
…1111101100101
311110211010211112
43310323331211
5112414134431
610212114405
71406523332
oct364737545
9143733745
1064208741
1133275a83
1219605a05
13103c184c
148755989
155984c2b
hex3d3bf65

64208741 has 2 divisors, whose sum is σ = 64208742. Its totient is φ = 64208740.

The previous prime is 64208737. The next prime is 64208791. The reversal of 64208741 is 14780246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33016516 + 31192225 = 5746^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 64208741 - 22 = 64208737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64208698 and 64208707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64208701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32104370 + 32104371.

It is an arithmetic number, because the mean of its divisors is an integer number (32104371).

Almost surely, 264208741 is an apocalyptic number.

It is an amenable number.

64208741 is a deficient number, since it is larger than the sum of its proper divisors (1).

64208741 is an equidigital number, since it uses as much as digits as its factorization.

64208741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64208741 is about 8013.0356919210. The cubic root of 64208741 is about 400.4344051430.

Adding to 64208741 its reverse (14780246), we get a palindrome (78988987).

The spelling of 64208741 in words is "sixty-four million, two hundred eight thousand, seven hundred forty-one".