Base | Representation |
---|---|
bin | 1001000101110… |
… | …1010100001001 |
3 | 2122202020211112 |
4 | 2101131110021 |
5 | 34230142303 |
6 | 3441140105 |
7 | 642051650 |
oct | 221352411 |
9 | 78666745 |
10 | 38130953 |
11 | 1a584393 |
12 | 1092a635 |
13 | 7b90bc3 |
14 | 50c8197 |
15 | 35330d8 |
hex | 245d509 |
38130953 has 4 divisors (see below), whose sum is σ = 43578240. Its totient is φ = 32683668.
The previous prime is 38130931. The next prime is 38130977. The reversal of 38130953 is 35903183.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35903183 = 109 ⋅329387.
It is a cyclic number.
It is not a de Polignac number, because 38130953 - 26 = 38130889 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38130913) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723633 + ... + 2723646.
It is an arithmetic number, because the mean of its divisors is an integer number (10894560).
Almost surely, 238130953 is an apocalyptic number.
It is an amenable number.
38130953 is a deficient number, since it is larger than the sum of its proper divisors (5447287).
38130953 is an equidigital number, since it uses as much as digits as its factorization.
38130953 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5447286.
The product of its (nonzero) digits is 9720, while the sum is 32.
The square root of 38130953 is about 6175.0265586473. The cubic root of 38130953 is about 336.5832915565.
The spelling of 38130953 in words is "thirty-eight million, one hundred thirty thousand, nine hundred fifty-three".
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