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67841349706 = 21341433146977
BaseRepresentation
bin111111001011101010…
…001101100001001010
320111002222110122100201
4333023222031201022
52102414341142311
651055455322414
74621112646364
oct771352154112
9214088418321
1067841349706
1126853745169
1211193b2040a
136522162ca0
1433d805dd34
151b70d609c1
hexfcba8d84a

67841349706 has 32 divisors (see below), whose sum is σ = 112522829328. Its totient is φ = 30476943360.

The previous prime is 67841349671. The next prime is 67841349749. The reversal of 67841349706 is 60794314876.

It can be written as a sum of positive squares in 8 ways, for example, as 2786256225 + 65055093481 = 52785^2 + 255059^2 .

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388090 + ... + 535066.

Almost surely, 267841349706 is an apocalyptic number.

67841349706 is a deficient number, since it is larger than the sum of its proper divisors (44681479622).

67841349706 is a wasteful number, since it uses less digits than its factorization.

67841349706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147466.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 67841349706 in words is "sixty-seven billion, eight hundred forty-one million, three hundred forty-nine thousand, seven hundred six".

Divisors: 1 2 13 26 41 82 433 533 866 1066 5629 11258 17753 35506 146977 230789 293954 461578 1910701 3821402 6026057 12052114 63641041 78338741 127282082 156677482 827333533 1654667066 2609282681 5218565362 33920674853 67841349706