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12742833 = 34247611
BaseRepresentation
bin110000100111…
…000010110001
3212222101212210
4300213002301
511230232313
61133042333
7213212055
oct60470261
925871783
1012742833
117213974
1243263a9
13284214c
141999c65
1511ba9c3
hexc270b1

12742833 has 4 divisors (see below), whose sum is σ = 16990448. Its totient is φ = 8495220.

The previous prime is 12742823. The next prime is 12742871. The reversal of 12742833 is 33824721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12742833 - 24 = 12742817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12742833.

It is not an unprimeable number, because it can be changed into a prime (12742823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123803 + ... + 2123808.

It is an arithmetic number, because the mean of its divisors is an integer number (4247612).

Almost surely, 212742833 is an apocalyptic number.

It is an amenable number.

12742833 is a deficient number, since it is larger than the sum of its proper divisors (4247615).

12742833 is an equidigital number, since it uses as much as digits as its factorization.

12742833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247614.

The product of its digits is 8064, while the sum is 30.

The square root of 12742833 is about 3569.7104924629. The cubic root of 12742833 is about 233.5726549061.

The spelling of 12742833 in words is "twelve million, seven hundred forty-two thousand, eight hundred thirty-three".

Divisors: 1 3 4247611 12742833