Base | Representation |
---|---|
bin | 1000010011101011010… |
… | …1010011001000100100 |
3 | 111122101110200112200000 |
4 | 2010322311103020210 |
5 | 4314243032040200 |
6 | 145322021421300 |
7 | 13211521145145 |
oct | 2047265231044 |
9 | 448343615600 |
10 | 142720971300 |
11 | 555892a4156 |
12 | 237b0b6a830 |
13 | 105c650bc9b |
14 | 6c9cb5dacc |
15 | 3aa4a4a300 |
hex | 213ad53224 |
142720971300 has 432 divisors, whose sum is σ = 490670928384. Its totient is φ = 35925120000.
The previous prime is 142720971299. The next prime is 142720971307. The reversal of 142720971300 is 3179027241.
142720971300 is a `hidden beast` number, since 14 + 272 + 0 + 9 + 71 + 300 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (142720971307) by changing a digit.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 30882990 + ... + 30887610.
Almost surely, 2142720971300 is an apocalyptic number.
142720971300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142720971300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245335464192).
142720971300 is an abundant number, since it is smaller than the sum of its proper divisors (347949957084).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142720971300 is a wasteful number, since it uses less digits than its factorization.
142720971300 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4722 (or 4703 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 36.
Adding to 142720971300 its reverse (3179027241), we get a palindrome (145899998541).
The spelling of 142720971300 in words is "one hundred forty-two billion, seven hundred twenty million, nine hundred seventy-one thousand, three hundred".
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