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12282773378 = 2783672
BaseRepresentation
bin10110111000001110…
…00011111110000010
31011201000012112111112
423130013003332002
5200123342222003
65350450243322
7613243564631
oct133407037602
934630175445
1012282773378
11523333a487
122469586542
131209910655
148473c9518
154bd4ca3d8
hex2dc1c3f82

12282773378 has 6 divisors (see below), whose sum is σ = 18424395171. Its totient is φ = 6141308322.

The previous prime is 12282773369. The next prime is 12282773389. The reversal of 12282773378 is 87337728221.

12282773378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6141386689 + 6141386689 = 78367^2 + 78367^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=78367.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117551 + ... + 195917.

Almost surely, 212282773378 is an apocalyptic number.

12282773378 is a deficient number, since it is larger than the sum of its proper divisors (6141621793).

12282773378 is an frugal number, since it uses more digits than its factorization.

12282773378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156736 (or 78369 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

Multiplying 12282773378 by its sum of digits (50), we get a square (614138668900 = 7836702).

The spelling of 12282773378 in words is "twelve billion, two hundred eighty-two million, seven hundred seventy-three thousand, three hundred seventy-eight".

Divisors: 1 2 78367 156734 6141386689 12282773378