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142233 = 3713521
BaseRepresentation
bin100010101110011001
321020002220
4202232121
514022413
63014253
71131450
oct425631
9236086
10142233
1197953
126a389
134c980
1439b97
152c223
hex22b99

142233 has 16 divisors (see below), whose sum is σ = 233856. Its totient is φ = 74880.

The previous prime is 142231. The next prime is 142237. The reversal of 142233 is 332241.

142233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142233 - 21 = 142231 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (14616).

2142233 is an apocalyptic number.

142233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142233 is a deficient number, since it is larger than the sum of its proper divisors (91623).

142233 is a wasteful number, since it uses less digits than its factorization.

142233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its digits is 144, while the sum is 15.

The square root of 142233 is about 377.1379058117. The cubic root of 142233 is about 52.1995537314.

Adding to 142233 its reverse (332241), we get a palindrome (474474).

The spelling of 142233 in words is "one hundred forty-two thousand, two hundred thirty-three".

Divisors: 1 3 7 13 21 39 91 273 521 1563 3647 6773 10941 20319 47411 142233