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12742082 = 26371041
BaseRepresentation
bin110000100110…
…110111000010
3212222100211222
4300212313002
511230221312
61133035042
7213206633
oct60466702
925870758
1012742082
117213351
124325a82
1328419c2
14199988a
1511ba672
hexc26dc2

12742082 has 4 divisors (see below), whose sum is σ = 19113126. Its totient is φ = 6371040.

The previous prime is 12742073. The next prime is 12742099. The reversal of 12742082 is 28024721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28024721 = 171648513.

It can be written as a sum of positive squares in only one way, i.e., 12538681 + 203401 = 3541^2 + 451^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3185519 + ... + 3185522.

Almost surely, 212742082 is an apocalyptic number.

12742082 is a deficient number, since it is larger than the sum of its proper divisors (6371044).

12742082 is an equidigital number, since it uses as much as digits as its factorization.

12742082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371043.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12742082 is about 3569.6053003098. The cubic root of 12742082 is about 233.5680662742.

The spelling of 12742082 in words is "twelve million, seven hundred forty-two thousand, eighty-two".

Divisors: 1 2 6371041 12742082