Base | Representation |
---|---|
bin | 11001101001000… |
… | …010101000011001 |
3 | 1002222110212110221 |
4 | 121221002220121 |
5 | 1340112022311 |
6 | 110404240041 |
7 | 13442355400 |
oct | 3151025031 |
9 | 1088425427 |
10 | 430189081 |
11 | 200915473 |
12 | 1000a0021 |
13 | 6b18166a |
14 | 411c2637 |
15 | 27b78671 |
hex | 19a42a19 |
430189081 has 9 divisors (see below), whose sum is σ = 500592981. Its totient is φ = 368609052.
The previous prime is 430189043. The next prime is 430189091. The reversal of 430189081 is 180981034.
It is a happy number.
The square root of 430189081 is 20741.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 430189081 - 29 = 430188569 is a prime.
It is a super-2 number, since 2×4301890812 = 370125290823249122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (430189021) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 143706 + ... + 146668.
Almost surely, 2430189081 is an apocalyptic number.
430189081 is the 20741-st square number.
430189081 is the 10371-st centered octagonal number.
It is an amenable number.
430189081 is a deficient number, since it is larger than the sum of its proper divisors (70403900).
430189081 is an frugal number, since it uses more digits than its factorization.
430189081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5940 (or 2970 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 34.
The cubic root of 430189081 is about 754.8948472768.
The spelling of 430189081 in words is "four hundred thirty million, one hundred eighty-nine thousand, eighty-one".
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