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142330518 = 23211718841
BaseRepresentation
bin10000111101111…
…00101010010110
3100220211010202200
420132330222112
5242414034033
622042345330
73345534531
oct1036745226
9326733680
10142330518
1173384030
123b7bb246
1323645055
1414c8da18
15c767013
hex87bca96

142330518 has 24 divisors (see below), whose sum is σ = 336418056. Its totient is φ = 43130400.

The previous prime is 142330499. The next prime is 142330519. The reversal of 142330518 is 815033241.

It is a happy number.

142330518 is a `hidden beast` number, since 142 + 3 + 3 + 0 + 518 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 142330491 and 142330500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142330519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359223 + ... + 359618.

It is an arithmetic number, because the mean of its divisors is an integer number (14017419).

Almost surely, 2142330518 is an apocalyptic number.

142330518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142330518 is an abundant number, since it is smaller than the sum of its proper divisors (194087538).

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

142330518 is a wasteful number, since it uses less digits than its factorization.

142330518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718860 (or 718857 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 142330518 is about 11930.2354545080. The cubic root of 142330518 is about 522.1148071783.

Adding to 142330518 its reverse (815033241), we get a palindrome (957363759).

The spelling of 142330518 in words is "one hundred forty-two million, three hundred thirty thousand, five hundred eighteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 718841 1437682 2156523 4313046 6469569 7907251 12939138 15814502 23721753 47443506 71165259 142330518