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542442201 = 3727151973
BaseRepresentation
bin100000010101010…
…000001011011001
31101210200220210220
4200111100023121
52102331122301
6125454230253
716304453100
oct4025201331
91353626726
10542442201
11259215944
121317b5389
13884c5422
1452083037
153294d936
hex205502d9

542442201 has 24 divisors (see below), whose sum is σ = 853205184. Its totient is φ = 305595360.

The previous prime is 542442193. The next prime is 542442211. The reversal of 542442201 is 102244245.

It is a happy number.

It is not a de Polignac number, because 542442201 - 23 = 542442193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542442211) 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 23 ways as a sum of consecutive naturals, for example, 15550 + ... + 36423.

It is an arithmetic number, because the mean of its divisors is an integer number (35550216).

Almost surely, 2542442201 is an apocalyptic number.

It is an amenable number.

542442201 is a deficient number, since it is larger than the sum of its proper divisors (310762983).

542442201 is a wasteful number, since it uses less digits than its factorization.

542442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52061 (or 52054 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 542442201 is about 23290.3885970157. The cubic root of 542442201 is about 815.5510599404.

Adding to 542442201 its reverse (102244245), we get a palindrome (644686446).

The spelling of 542442201 in words is "five hundred forty-two million, four hundred forty-two thousand, two hundred one".

Divisors: 1 3 7 21 49 71 147 213 497 1491 3479 10437 51973 155919 363811 1091433 2546677 3690083 7640031 11070249 25830581 77491743 180814067 542442201