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12742501 = 131211461
BaseRepresentation
bin110000100110…
…111101100101
3212222101102111
4300212331211
511230230001
61133041021
7213211102
oct60467545
925871374
1012742501
1172136a2
124326171
132841c55
141999aa9
1511ba851
hexc26f65

12742501 has 8 divisors (see below), whose sum is σ = 12928608. Its totient is φ = 12558000.

The previous prime is 12742481. The next prime is 12742511. The reversal of 12742501 is 10524721.

It is a happy number.

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 12742501 - 215 = 12709733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742511) 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, 27411 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (1616076).

Almost surely, 212742501 is an apocalyptic number.

It is an amenable number.

12742501 is a deficient number, since it is larger than the sum of its proper divisors (186107).

12742501 is a wasteful number, since it uses less digits than its factorization.

12742501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 12742501 is about 3569.6639897895. The cubic root of 12742501 is about 233.5706263987.

The spelling of 12742501 in words is "twelve million, seven hundred forty-two thousand, five hundred one".

Divisors: 1 131 211 461 27641 60391 97271 12742501