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542345331 = 31116434707
BaseRepresentation
bin100000010100111…
…000100001110011
31101210111222221010
4200110320201303
52102320022311
6125452202003
716303600503
oct4024704163
91353458833
10542345331
1125915a090
12131769303
13884902c8
1452059a03
153292eda6
hex20538873

542345331 has 8 divisors (see below), whose sum is σ = 788865984. Its totient is φ = 328694120.

The previous prime is 542345299. The next prime is 542345351. The reversal of 542345331 is 133543245.

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 542345331 - 25 = 542345299 is a prime.

It is a super-2 number, since 2×5423453312 = 588276916114999122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542345351) 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, 8217321 + ... + 8217386.

It is an arithmetic number, because the mean of its divisors is an integer number (98608248).

Almost surely, 2542345331 is an apocalyptic number.

542345331 is a deficient number, since it is larger than the sum of its proper divisors (246520653).

542345331 is a wasteful number, since it uses less digits than its factorization.

542345331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16434721.

The product of its digits is 21600, while the sum is 30.

The square root of 542345331 is about 23288.3088909435. The cubic root of 542345331 is about 815.5025096775.

Adding to 542345331 its reverse (133543245), we get a palindrome (675888576).

The spelling of 542345331 in words is "five hundred forty-two million, three hundred forty-five thousand, three hundred thirty-one".

Divisors: 1 3 11 33 16434707 49304121 180781777 542345331