Base | Representation |
---|---|
bin | 1001000101110… |
… | …0000110101001 |
3 | 2122202000000211 |
4 | 2101130012221 |
5 | 34230012433 |
6 | 3441101121 |
7 | 642031333 |
oct | 221340651 |
9 | 78660024 |
10 | 38125993 |
11 | 1a580694 |
12 | 109277a1 |
13 | 7b8b879 |
14 | 50c6453 |
15 | 35318cd |
hex | 245c1a9 |
38125993 has 4 divisors (see below), whose sum is σ = 39012688. Its totient is φ = 37239300.
The previous prime is 38125991. The next prime is 38125999. The reversal of 38125993 is 39952183.
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.
It is a cyclic number.
It is not a de Polignac number, because 38125993 - 21 = 38125991 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38125991) 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, 443283 + ... + 443368.
It is an arithmetic number, because the mean of its divisors is an integer number (9753172).
Almost surely, 238125993 is an apocalyptic number.
It is an amenable number.
38125993 is a deficient number, since it is larger than the sum of its proper divisors (886695).
38125993 is an equidigital number, since it uses as much as digits as its factorization.
38125993 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 886694.
The product of its digits is 58320, while the sum is 40.
The square root of 38125993 is about 6174.6249278802. The cubic root of 38125993 is about 336.5686968909.
The spelling of 38125993 in words is "thirty-eight million, one hundred twenty-five thousand, nine hundred ninety-three".
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