Base | Representation |
---|---|
bin | 1001000101110… |
… | …1001111000001 |
3 | 2122202020101101 |
4 | 2101131033001 |
5 | 34230140000 |
6 | 3441134401 |
7 | 642051001 |
oct | 221351701 |
9 | 78666341 |
10 | 38130625 |
11 | 1a584115 |
12 | 1092a401 |
13 | 7b90a00 |
14 | 50c8001 |
15 | 3532e6a |
hex | 245d3c1 |
38130625 has 45 divisors (see below), whose sum is σ = 54453663. Its totient is φ = 26676000.
The previous prime is 38130613. The next prime is 38130649. The reversal of 38130625 is 52603183.
The square root of 38130625 is 6175.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 7 ways, for example, as 37662769 + 467856 = 6137^2 + 684^2 .
It is not a de Polignac number, because 38130625 - 25 = 38130593 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 38130593 and 38130602.
It is an unprimeable number.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2006866 + ... + 2006884.
Almost surely, 238130625 is an apocalyptic number.
38130625 is the 6175-th square number.
38130625 is the 3088-th centered octagonal number.
It is an amenable number.
38130625 is a deficient number, since it is larger than the sum of its proper divisors (16323038).
38130625 is an equidigital number, since it uses as much as digits as its factorization.
38130625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84 (or 37 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 28.
The cubic root of 38130625 is about 336.5823264644.
The spelling of 38130625 in words is "thirty-eight million, one hundred thirty thousand, six hundred twenty-five".
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