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542341 = 1972753
BaseRepresentation
bin10000100011010000101
31000112221201
42010122011
5114323331
615342501
74416112
oct2043205
91015851
10542341
11340518
12221a31
1315cb17
14101909
15aaa61
hex84685

542341 has 4 divisors (see below), whose sum is σ = 545292. Its totient is φ = 539392.

The previous prime is 542323. The next prime is 542371. The reversal of 542341 is 143245.

Adding to 542341 its reverse (143245), we get a palindrome (685586).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143245 = 528649.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 22500 = 721^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 542341 - 215 = 509573 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (136323).

2542341 is an apocalyptic number.

542341 is the 394-th nonagonal number.

It is an amenable number.

542341 is a deficient number, since it is larger than the sum of its proper divisors (2951).

542341 is a wasteful number, since it uses less digits than its factorization.

542341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950.

The product of its digits is 480, while the sum is 19.

The square root of 542341 is about 736.4380489899. The cubic root of 542341 is about 81.5500338889.

The spelling of 542341 in words is "five hundred forty-two thousand, three hundred forty-one".

Divisors: 1 197 2753 542341