Base | Representation |
---|---|
bin | 1001010011000… |
… | …0000111101111 |
3 | 2201101010021121 |
4 | 2110300013233 |
5 | 34440310130 |
6 | 3511441411 |
7 | 652306225 |
oct | 224600757 |
9 | 81333247 |
10 | 38994415 |
11 | 20014099 |
12 | 11086267 |
13 | 8103c25 |
14 | 5270b15 |
15 | 3653d7a |
hex | 25301ef |
38994415 has 8 divisors (see below), whose sum is σ = 48407040. Its totient is φ = 30119712.
The previous prime is 38994367. The next prime is 38994419. The reversal of 38994415 is 51449983.
It is a happy number.
38994415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38994415 - 211 = 38992367 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38994419) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134319 + ... + 134608.
It is an arithmetic number, because the mean of its divisors is an integer number (6050880).
Almost surely, 238994415 is an apocalyptic number.
38994415 is a deficient number, since it is larger than the sum of its proper divisors (9412625).
38994415 is a wasteful number, since it uses less digits than its factorization.
38994415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 268961.
The product of its digits is 155520, while the sum is 43.
The square root of 38994415 is about 6244.5508245189. The cubic root of 38994415 is about 339.1049555663.
The spelling of 38994415 in words is "thirty-eight million, nine hundred ninety-four thousand, four hundred fifteen".
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