Base | Representation |
---|---|
bin | 101010011001000… |
… | …0110100000111110 |
3 | 10200010112102110100 |
4 | 1110302012200332 |
5 | 10403114420110 |
6 | 353051221530 |
7 | 50151241113 |
oct | 12462064076 |
9 | 3603472410 |
10 | 1422420030 |
11 | 66aa12249 |
12 | 3384478a6 |
13 | 1988cb575 |
14 | d6caa90a |
15 | 84d22bc0 |
hex | 54c8683e |
1422420030 has 48 divisors (see below), whose sum is σ = 3710410704. Its totient is φ = 378069120.
The previous prime is 1422420017. The next prime is 1422420037. The reversal of 1422420030 is 300242241.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1422419985 and 1422420012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1422420037) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1890 + ... + 53370.
It is an arithmetic number, because the mean of its divisors is an integer number (77300223).
Almost surely, 21422420030 is an apocalyptic number.
1422420030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1422420030 is an abundant number, since it is smaller than the sum of its proper divisors (2287990674).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1422420030 is a wasteful number, since it uses less digits than its factorization.
1422420030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51801 (or 51798 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 1422420030 is about 37714.9841574937. The cubic root of 1422420030 is about 1124.6290213837.
Adding to 1422420030 its reverse (300242241), we get a palindrome (1722662271).
The spelling of 1422420030 in words is "one billion, four hundred twenty-two million, four hundred twenty thousand, thirty".
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