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20741201 = 1323137107
BaseRepresentation
bin100111100011…
…1110001010001
31110000202120122
41033013301101
520302204301
62020320025
7341203655
oct117076121
943022518
1020741201
1110787198
126b43015
1343b2900
142a7ca65
151c4a81b
hex13c7c51

20741201 has 24 divisors (see below), whose sum is σ = 24033024. Its totient is φ = 17858880.

The previous prime is 20741197. The next prime is 20741243. The reversal of 20741201 is 10214702.

It is not a de Polignac number, because 20741201 - 22 = 20741197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20741201.

It is not an unprimeable number, because it can be changed into a prime (20741291) 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 23 ways as a sum of consecutive naturals, for example, 193790 + ... + 193896.

It is an arithmetic number, because the mean of its divisors is an integer number (1001376).

Almost surely, 220741201 is an apocalyptic number.

It is an amenable number.

20741201 is a deficient number, since it is larger than the sum of its proper divisors (3291823).

20741201 is a wasteful number, since it uses less digits than its factorization.

20741201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 20741201 is about 4554.2508714387. The cubic root of 20741201 is about 274.7543856552.

Adding to 20741201 its reverse (10214702), we get a palindrome (30955903).

The spelling of 20741201 in words is "twenty million, seven hundred forty-one thousand, two hundred one".

Divisors: 1 13 31 37 107 169 403 481 1147 1391 3317 3959 5239 6253 14911 18083 43121 51467 122729 193843 560573 669071 1595477 20741201