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12742311 = 34790371
BaseRepresentation
bin110000100110…
…111010100111
3212222101011110
4300212322213
511230223221
61133040103
7213210411
oct60467247
925871143
1012742311
11721353a
124326033
132841b3a
1419999b1
1511ba776
hexc26ea7

12742311 has 8 divisors (see below), whose sum is σ = 17351424. Its totient is φ = 8314040.

The previous prime is 12742297. The next prime is 12742321. The reversal of 12742311 is 11324721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12742311 - 213 = 12734119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45045 + ... + 45326.

It is an arithmetic number, because the mean of its divisors is an integer number (2168928).

Almost surely, 212742311 is an apocalyptic number.

12742311 is a deficient number, since it is larger than the sum of its proper divisors (4609113).

12742311 is an equidigital number, since it uses as much as digits as its factorization.

12742311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90421.

The product of its digits is 336, while the sum is 21.

The square root of 12742311 is about 3569.6373765412. The cubic root of 12742311 is about 233.5694654900.

The spelling of 12742311 in words is "twelve million, seven hundred forty-two thousand, three hundred eleven".

Divisors: 1 3 47 141 90371 271113 4247437 12742311