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13420027 = 30114457
BaseRepresentation
bin110011001100…
…010111111011
3221020210211001
4303030113323
511413420102
61155345431
7222032305
oct63142773
927223731
1013420027
117636735
1245b2277
132a1b45a
141ad4975
1512a1487
hexccc5fb

13420027 has 4 divisors (see below), whose sum is σ = 13427496. Its totient is φ = 13412560.

The previous prime is 13420019. The next prime is 13420031. The reversal of 13420027 is 72002431.

13420027 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13420027 - 23 = 13420019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13419986 and 13420013.

It is not an unprimeable number, because it can be changed into a prime (13420037) 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, 783 + ... + 5239.

It is an arithmetic number, because the mean of its divisors is an integer number (3356874).

Almost surely, 213420027 is an apocalyptic number.

13420027 is a deficient number, since it is larger than the sum of its proper divisors (7469).

13420027 is an equidigital number, since it uses as much as digits as its factorization.

13420027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 13420027 is about 3663.3355019708. The cubic root of 13420027 is about 237.6390439735.

Adding to 13420027 its reverse (72002431), we get a palindrome (85422458).

The spelling of 13420027 in words is "thirteen million, four hundred twenty thousand, twenty-seven".

Divisors: 1 3011 4457 13420027