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542441231 = 22914471637
BaseRepresentation
bin100000010101001…
…111111100001111
31101210200212110222
4200111033330033
52102331104411
6125454221555
716304450213
oct4025177417
91353625428
10542441231
11259215142
121317b48bb
13884c4b57
1452082943
153294d4db
hex2054ff0f

542441231 has 8 divisors (see below), whose sum is σ = 545519520. Its totient is φ = 539369568.

The previous prime is 542441227. The next prime is 542441261. The reversal of 542441231 is 132144245.

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 542441231 - 22 = 542441227 is a prime.

It is a super-2 number, since 2×5424412312 = 588484978177590722, which contains 22 as substring.

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 542441231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542441261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330545 + ... + 332181.

It is an arithmetic number, because the mean of its divisors is an integer number (68189940).

Almost surely, 2542441231 is an apocalyptic number.

542441231 is a deficient number, since it is larger than the sum of its proper divisors (3078289).

542441231 is a wasteful number, since it uses less digits than its factorization.

542441231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313.

The product of its digits is 3840, while the sum is 26.

The square root of 542441231 is about 23290.3677729657. The cubic root of 542441231 is about 815.5505738149.

Adding to 542441231 its reverse (132144245), we get a palindrome (674585476).

The spelling of 542441231 in words is "five hundred forty-two million, four hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 229 1447 1637 331363 374873 2368739 542441231