Base | Representation |
---|---|
bin | 1000010010101111110… |
… | …0100100101100100000 |
3 | 111121202001201212021212 |
4 | 2010223330210230200 |
5 | 4313240113020000 |
6 | 145241140405252 |
7 | 13202366250224 |
oct | 2045374445440 |
9 | 447661655255 |
10 | 142471220000 |
11 | 5547032031a |
12 | 237413a6828 |
13 | 10586855855 |
14 | 6c7790a784 |
15 | 3a8cb64c35 |
hex | 212bf24b20 |
142471220000 has 270 divisors, whose sum is σ = 374717698047. Its totient is φ = 53294592000.
The previous prime is 142471219993. The next prime is 142471220027. The reversal of 142471220000 is 22174241.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 23 ways, for example, as 99192242704 + 43278977296 = 314948^2 + 208036^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=266900.
It is a super-3 number, since 3×1424712200003 (a number of 34 digits) contains 333 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 907459922 + ... + 907460078.
Almost surely, 2142471220000 is an apocalyptic number.
142471220000 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 142471220000
142471220000 is an abundant number, since it is smaller than the sum of its proper divisors (232246478047).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142471220000 is an frugal number, since it uses more digits than its factorization.
142471220000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 378 (or 181 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 23.
Adding to 142471220000 its reverse (22174241), we get a palindrome (142493394241).
The spelling of 142471220000 in words is "one hundred forty-two billion, four hundred seventy-one million, two hundred twenty thousand".
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