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20126441 = 712571103
BaseRepresentation
bin100110011000…
…1101011101001
31101212112021202
41030301223221
520123021231
61555213545
7333033446
oct114615351
941775252
1020126441
11103a7325
1268a72b5
134228b4a
14295c9cd
151b785cb
hex1331ae9

20126441 has 8 divisors (see below), whose sum is σ = 20507904. Its totient is φ = 19747840.

The previous prime is 20126437. The next prime is 20126459. The reversal of 20126441 is 14462102.

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 20126441 - 22 = 20126437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116441) 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, 17696 + ... + 18798.

It is an arithmetic number, because the mean of its divisors is an integer number (2563488).

Almost surely, 220126441 is an apocalyptic number.

It is an amenable number.

20126441 is a deficient number, since it is larger than the sum of its proper divisors (381463).

20126441 is a wasteful number, since it uses less digits than its factorization.

20126441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20126441 is about 4486.2502159376. The cubic root of 20126441 is about 272.0125832198.

Adding to 20126441 its reverse (14462102), we get a palindrome (34588543).

The spelling of 20126441 in words is "twenty million, one hundred twenty-six thousand, four hundred forty-one".

Divisors: 1 71 257 1103 18247 78313 283471 20126441