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542230 = 25134397
BaseRepresentation
bin10000100011000010110
31000112210121
42010120112
5114322410
615342154
74415563
oct2043026
91015717
10542230
11340427
1222195a
1315ca60
1410186a
15aa9da
hex84616

542230 has 32 divisors (see below), whose sum is σ = 1086624. Its totient is φ = 193536.

The previous prime is 542219. The next prime is 542237. The reversal of 542230 is 32245.

Adding to 542230 its reverse (32245), we get a palindrome (574475).

It is a d-powerful number, because it can be written as 55 + 43 + 213 + 219 + 38 + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542237) by changing a digit.

542230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 5542 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (33957).

2542230 is an apocalyptic number.

542230 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542230 is a wasteful number, since it uses less digits than its factorization.

542230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 542230 is about 736.3626823787. The cubic root of 542230 is about 81.5444699409.

The spelling of 542230 in words is "five hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 43 65 86 97 130 194 215 430 485 559 970 1118 1261 2522 2795 4171 5590 6305 8342 12610 20855 41710 54223 108446 271115 542230