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545442510212 = 221491575829121
BaseRepresentation
bin1111110111111101110…
…10000011010110000100
31221010212211022102012022
413323332322003112010
532414031240311322
61054323421542312
754256400561015
oct7737672032604
91833784272168
10545442510212
111a0359093a66
1289863714998
133c586935782
141c58456100c
15e2c5330942
hex7efee83584

545442510212 has 24 divisors (see below), whose sum is σ = 967051339800. Its totient is φ = 269165445120.

The previous prime is 545442510211. The next prime is 545442510229. The reversal of 545442510212 is 212015244545.

It can be written as a sum of positive squares in 4 ways, for example, as 6237208576 + 539205301636 = 78976^2 + 734306^2 .

It is not an unprimeable number, because it can be changed into a prime (545442510211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2820989 + ... + 3008132.

It is an arithmetic number, because the mean of its divisors is an integer number (40293805825).

Almost surely, 2545442510212 is an apocalyptic number.

It is an amenable number.

545442510212 is a deficient number, since it is larger than the sum of its proper divisors (421608829588).

545442510212 is a wasteful number, since it uses less digits than its factorization.

545442510212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829431 (or 5829429 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 545442510212 its reverse (212015244545), we get a palindrome (757457754757).

The spelling of 545442510212 in words is "five hundred forty-five billion, four hundred forty-two million, five hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 149 157 298 314 596 628 23393 46786 93572 5829121 11658242 23316484 868539029 915171997 1737078058 1830343994 3474156116 3660687988 136360627553 272721255106 545442510212