Base | Representation |
---|---|
bin | 101010101000010… |
… | …1000101010011100 |
3 | 10200200121002010211 |
4 | 1111100220222130 |
5 | 10412142033340 |
6 | 353534542204 |
7 | 50306256001 |
oct | 12520505234 |
9 | 3620532124 |
10 | 1430424220 |
11 | 674489985 |
12 | 33b067964 |
13 | 19a471884 |
14 | d7d918a8 |
15 | 858a45ea |
hex | 55428a9c |
1430424220 has 48 divisors (see below), whose sum is σ = 3056030208. Its totient is φ = 562291520.
The previous prime is 1430424169. The next prime is 1430424223. The reversal of 1430424220 is 224240341.
It is a happy number.
It is a super-2 number, since 2×14304242202 = 4092226898325216800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1430424191 and 1430424200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1430424223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491289 + ... + 494191.
It is an arithmetic number, because the mean of its divisors is an integer number (63667296).
Almost surely, 21430424220 is an apocalyptic number.
1430424220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1430424220 is an abundant number, since it is smaller than the sum of its proper divisors (1625605988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1430424220 is a wasteful number, since it uses less digits than its factorization.
1430424220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3330 (or 3328 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 22.
The square root of 1430424220 is about 37820.9494857017. The cubic root of 1430424220 is about 1126.7345673319.
Adding to 1430424220 its reverse (224240341), we get a palindrome (1654664561).
The spelling of 1430424220 in words is "one billion, four hundred thirty million, four hundred twenty-four thousand, two hundred twenty".
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