Base | Representation |
---|---|
bin | 1000010010100001011… |
… | …1010110100101010100 |
3 | 111121120212200000222111 |
4 | 2010220113112211110 |
5 | 4313124222144340 |
6 | 145231152440404 |
7 | 13201036433251 |
oct | 2045027264524 |
9 | 447525600874 |
10 | 142411131220 |
11 | 5543a409776 |
12 | 23725249104 |
13 | 10577277367 |
14 | 6c6d948428 |
15 | 3a87745aea |
hex | 21285d6954 |
142411131220 has 12 divisors (see below), whose sum is σ = 299063375604. Its totient is φ = 56964452480.
The previous prime is 142411131209. The next prime is 142411131257. The reversal of 142411131220 is 22131114241.
It can be written as a sum of positive squares in 2 ways, for example, as 91340555076 + 51070576144 = 302226^2 + 225988^2 .
It is a junction number, because it is equal to n+sod(n) for n = 142411131191 and 142411131200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560278261 + ... + 3560278300.
It is an arithmetic number, because the mean of its divisors is an integer number (24921947967).
Almost surely, 2142411131220 is an apocalyptic number.
142411131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
142411131220 is an abundant number, since it is smaller than the sum of its proper divisors (156652244384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142411131220 is a wasteful number, since it uses less digits than its factorization.
142411131220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7120556570 (or 7120556568 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 22.
Adding to 142411131220 its reverse (22131114241), we get a palindrome (164542245461).
The spelling of 142411131220 in words is "one hundred forty-two billion, four hundred eleven million, one hundred thirty-one thousand, two hundred twenty".
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