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60645746281 is a prime number
BaseRepresentation
bin111000011110110001…
…001010011001101001
312210112111200010010011
4320132301022121221
51443200302340111
643505452451521
74244600223631
oct703661123151
9183474603104
1060645746281
11237a0a4087a
12b906179ba1
135946481c93
142d145476c1
15189e2aa021
hexe1ec4a669

60645746281 has 2 divisors, whose sum is σ = 60645746282. Its totient is φ = 60645746280.

The previous prime is 60645746267. The next prime is 60645746321. The reversal of 60645746281 is 18264754606.

60645746281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50561569881 + 10084176400 = 224859^2 + 100420^2 .

It is a cyclic number.

It is not a de Polignac number, because 60645746281 - 211 = 60645744233 is a prime.

It is a super-2 number, since 2×606457462812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60645746261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30322873140 + 30322873141.

It is an arithmetic number, because the mean of its divisors is an integer number (30322873141).

Almost surely, 260645746281 is an apocalyptic number.

It is an amenable number.

60645746281 is a deficient number, since it is larger than the sum of its proper divisors (1).

60645746281 is an equidigital number, since it uses as much as digits as its factorization.

60645746281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 60645746281 in words is "sixty billion, six hundred forty-five million, seven hundred forty-six thousand, two hundred eighty-one".