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13412018 = 26706009
BaseRepresentation
bin110011001010…
…011010110010
3221020101211102
4303022122302
511413141033
61155244402
7222000044
oct63123262
927211742
1013412018
117630714
1245a9702
132a17909
141ad1a94
15129dde8
hexcca6b2

13412018 has 4 divisors (see below), whose sum is σ = 20118030. Its totient is φ = 6706008.

The previous prime is 13412017. The next prime is 13412023. The reversal of 13412018 is 81021431.

13412018 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 81021431 = 88391757.

It can be written as a sum of positive squares in only one way, i.e., 11404129 + 2007889 = 3377^2 + 1417^2 .

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (13412011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3353003 + ... + 3353006.

Almost surely, 213412018 is an apocalyptic number.

13412018 is a deficient number, since it is larger than the sum of its proper divisors (6706012).

13412018 is an equidigital number, since it uses as much as digits as its factorization.

13412018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706011.

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

The square root of 13412018 is about 3662.2422093575. The cubic root of 13412018 is about 237.5917606646.

Adding to 13412018 its reverse (81021431), we get a palindrome (94433449).

The spelling of 13412018 in words is "thirteen million, four hundred twelve thousand, eighteen".

Divisors: 1 2 6706009 13412018