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20144201 = 7112171399
BaseRepresentation
bin100110011011…
…0000001001001
31101220102122112
41030312001021
520124103301
61555432105
7333136310
oct114660111
941812575
1020144201
1110409700
1268b5635
134233c5c
142965277
151b7d9bb
hex1336049

20144201 has 24 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 14762880.

The previous prime is 20144143. The next prime is 20144209. The reversal of 20144201 is 10244102.

It is not a de Polignac number, because 20144201 - 214 = 20127817 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13700 + ... + 15098.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 220144201 is an apocalyptic number.

It is an amenable number.

20144201 is a deficient number, since it is larger than the sum of its proper divisors (6668599).

20144201 is a wasteful number, since it uses less digits than its factorization.

20144201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1434 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20144201 is about 4488.2291608161. The cubic root of 20144201 is about 272.0925695952.

Adding to 20144201 its reverse (10244102), we get a palindrome (30388303).

Subtracting from 20144201 its reverse (10244102), we obtain a palindrome (9900099).

The spelling of 20144201 in words is "twenty million, one hundred forty-four thousand, two hundred one".

Divisors: 1 7 11 17 77 119 121 187 847 1309 1399 2057 9793 14399 15389 23783 107723 166481 169279 261613 1184953 1831291 2877743 20144201