Base | Representation |
---|---|
bin | 1000010010100110000… |
… | …0010100000001011010 |
3 | 111121122012122201221200 |
4 | 2010221200110001122 |
5 | 4313144121212432 |
6 | 145233114415030 |
7 | 13201361132250 |
oct | 2045140240132 |
9 | 447565581850 |
10 | 142430257242 |
11 | 5544a1923a9 |
12 | 2372b731476 |
13 | 1057b212a30 |
14 | 6c722c65d0 |
15 | 3a89272a7c |
hex | 212981405a |
142430257242 has 192 divisors, whose sum is σ = 403490191104. Its totient is φ = 35237099520.
The previous prime is 142430257181. The next prime is 142430257243. The reversal of 142430257242 is 242752034241.
142430257242 is a `hidden beast` number, since 1 + 4 + 2 + 43 + 0 + 2 + 572 + 42 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 142430257197 and 142430257206.
It is not an unprimeable number, because it can be changed into a prime (142430257243) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8540392 + ... + 8557052.
It is an arithmetic number, because the mean of its divisors is an integer number (2101511412).
Almost surely, 2142430257242 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142430257242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201745095552).
142430257242 is an abundant number, since it is smaller than the sum of its proper divisors (261059933862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142430257242 is a wasteful number, since it uses less digits than its factorization.
142430257242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17013 (or 17010 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 36.
It can be divided in two parts, 1424302 and 57242, that added together give a cube (1481544 = 1143).
The spelling of 142430257242 in words is "one hundred forty-two billion, four hundred thirty million, two hundred fifty-seven thousand, two hundred forty-two".
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