Base | Representation |
---|---|
bin | 10001000001101… |
… | …10101110110000 |
3 | 100221202112121222 |
4 | 20200312232300 |
5 | 243031034022 |
6 | 22101204212 |
7 | 3353016326 |
oct | 1040665660 |
9 | 327675558 |
10 | 142830512 |
11 | 73695750 |
12 | 3ba00668 |
13 | 2378b7c6 |
14 | 14d7dd16 |
15 | c815242 |
hex | 8836bb0 |
142830512 has 40 divisors (see below), whose sum is σ = 304861440. Its totient is φ = 64284480.
The previous prime is 142830491. The next prime is 142830551. The reversal of 142830512 is 215038241.
It is a super-3 number, since 3×1428305123 (a number of 25 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14189 + ... + 22067.
It is an arithmetic number, because the mean of its divisors is an integer number (7621536).
Almost surely, 2142830512 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142830512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152430720).
142830512 is an abundant number, since it is smaller than the sum of its proper divisors (162030928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142830512 is a wasteful number, since it uses less digits than its factorization.
142830512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8001 (or 7995 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 26.
The square root of 142830512 is about 11951.1719927378. The cubic root of 142830512 is about 522.7254730735.
Adding to 142830512 its reverse (215038241), we get a palindrome (357868753).
The spelling of 142830512 in words is "one hundred forty-two million, eight hundred thirty thousand, five hundred twelve".
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