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13853145 = 35923543
BaseRepresentation
bin110100110110…
…000111011001
3222001210221110
4310312013121
512021300040
61212530533
7225515115
oct64660731
928053843
1013853145
117902089
124780a49
132b40637
141ba8745
151339980
hexd361d9

13853145 has 8 divisors (see below), whose sum is σ = 22165056. Its totient is φ = 7388336.

The previous prime is 13853143. The next prime is 13853167. The reversal of 13853145 is 54135831.

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 13853145 - 21 = 13853143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13853143) 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, 461757 + ... + 461786.

It is an arithmetic number, because the mean of its divisors is an integer number (2770632).

Almost surely, 213853145 is an apocalyptic number.

13853145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13853145 is a deficient number, since it is larger than the sum of its proper divisors (8311911).

13853145 is an equidigital number, since it uses as much as digits as its factorization.

13853145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923551.

The product of its digits is 7200, while the sum is 30.

The square root of 13853145 is about 3721.9813271966. The cubic root of 13853145 is about 240.1685448028.

Adding to 13853145 its reverse (54135831), we get a palindrome (67988976).

The spelling of 13853145 in words is "thirteen million, eight hundred fifty-three thousand, one hundred forty-five".

Divisors: 1 3 5 15 923543 2770629 4617715 13853145