Base | Representation |
---|---|
bin | 11111100101111… |
… | …010010101001011 |
3 | 1100221100102010212 |
4 | 133211322111023 |
5 | 2041142010242 |
6 | 124332231335 |
7 | 16064124434 |
oct | 3745722513 |
9 | 1327312125 |
10 | 530031947 |
11 | 252209935 |
12 | 12960b54b |
13 | 85a6b793 |
14 | 5057248b |
15 | 317eb782 |
hex | 1f97a54b |
530031947 has 4 divisors (see below), whose sum is σ = 530126136. Its totient is φ = 529937760.
The previous prime is 530031913. The next prime is 530031949. The reversal of 530031947 is 749130035.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 530031947 - 210 = 530030923 is a prime.
It is a super-2 number, since 2×5300319472 = 561867729681221618, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (530031949) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38078 + ... + 50099.
It is an arithmetic number, because the mean of its divisors is an integer number (132531534).
Almost surely, 2530031947 is an apocalyptic number.
530031947 is a deficient number, since it is larger than the sum of its proper divisors (94189).
530031947 is an equidigital number, since it uses as much as digits as its factorization.
530031947 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 94188.
The product of its (nonzero) digits is 11340, while the sum is 32.
The square root of 530031947 is about 23022.4227004892. The cubic root of 530031947 is about 809.2834932937.
The spelling of 530031947 in words is "five hundred thirty million, thirty-one thousand, nine hundred forty-seven".
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