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13428011 = 17789883
BaseRepresentation
bin110011001110…
…010100101011
3221021012202202
4303032110223
511414144021
61155450415
7222064502
oct63162453
927235682
1013428011
117641733
1245b6a0b
132a21c8c
141ad7839
1512a3a0b
hexcce52b

13428011 has 4 divisors (see below), whose sum is σ = 14217912. Its totient is φ = 12638112.

The previous prime is 13427983. The next prime is 13428049. The reversal of 13428011 is 11082431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11082431 = 22349697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13428011 is a prime.

It is a super-2 number, since 2×134280112 = 360622958832242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13428061) 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 3 ways as a sum of consecutive naturals, for example, 394925 + ... + 394958.

It is an arithmetic number, because the mean of its divisors is an integer number (3554478).

Almost surely, 213428011 is an apocalyptic number.

13428011 is a deficient number, since it is larger than the sum of its proper divisors (789901).

13428011 is an equidigital number, since it uses as much as digits as its factorization.

13428011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789900.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 13428011 is about 3664.4250572225. The cubic root of 13428011 is about 237.6861609675.

The spelling of 13428011 in words is "thirteen million, four hundred twenty-eight thousand, eleven".

Divisors: 1 17 789883 13428011