Base | Representation |
---|---|
bin | 1001001001111… |
… | …1001001001001 |
3 | 2200020221200220 |
4 | 2102133021021 |
5 | 34312304320 |
6 | 3451020253 |
7 | 644254026 |
oct | 222371111 |
9 | 80227626 |
10 | 38400585 |
11 | 1a748a23 |
12 | 10a3a689 |
13 | 7c56852 |
14 | 515854d |
15 | 3587e40 |
hex | 249f249 |
38400585 has 8 divisors (see below), whose sum is σ = 61440960. Its totient is φ = 20480304.
The previous prime is 38400521. The next prime is 38400587. The reversal of 38400585 is 58500483.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38400585 - 26 = 38400521 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (38400587) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280005 + ... + 1280034.
It is an arithmetic number, because the mean of its divisors is an integer number (7680120).
Almost surely, 238400585 is an apocalyptic number.
It is an amenable number.
38400585 is a deficient number, since it is larger than the sum of its proper divisors (23040375).
38400585 is a wasteful number, since it uses less digits than its factorization.
38400585 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2560047.
The product of its (nonzero) digits is 19200, while the sum is 33.
The square root of 38400585 is about 6196.8205557366. The cubic root of 38400585 is about 337.3747793346.
The spelling of 38400585 in words is "thirty-eight million, four hundred thousand, five hundred eighty-five".
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