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20353441 = 371513643
BaseRepresentation
bin100110110100…
…1000110100001
31102022001200011
41031221012201
520202302231
62004124521
7335000323
oct115510641
942261604
1020353441
1110541929
126996741
1342a8274
1429bb613
151bc09b1
hex13691a1

20353441 has 8 divisors (see below), whose sum is σ = 21047744. Its totient is φ = 19666800.

The previous prime is 20353429. The next prime is 20353483. The reversal of 20353441 is 14435302.

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 20353441 - 213 = 20345249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20353241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3766 + ... + 7408.

It is an arithmetic number, because the mean of its divisors is an integer number (2630968).

Almost surely, 220353441 is an apocalyptic number.

It is an amenable number.

20353441 is a deficient number, since it is larger than the sum of its proper divisors (694303).

20353441 is a wasteful number, since it uses less digits than its factorization.

20353441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20353441 is about 4511.4788041173. The cubic root of 20353441 is about 273.0314114500.

Adding to 20353441 its reverse (14435302), we get a palindrome (34788743).

It can be divided in two parts, 2035 and 3441, that added together give a square (5476 = 742).

The spelling of 20353441 in words is "twenty million, three hundred fifty-three thousand, four hundred forty-one".

Divisors: 1 37 151 3643 5587 134791 550093 20353441