Base | Representation |
---|---|
bin | 1001000101001… |
… | …0101100111001 |
3 | 2122200001012110 |
4 | 2101102230321 |
5 | 34222244411 |
6 | 3440202533 |
7 | 641511135 |
oct | 221225471 |
9 | 78601173 |
10 | 38087481 |
11 | 1a554763 |
12 | 10909449 |
13 | 7b77193 |
14 | 50b63c5 |
15 | 35252a6 |
hex | 2452b39 |
38087481 has 8 divisors (see below), whose sum is σ = 50862784. Its totient is φ = 25351920.
The previous prime is 38087479. The next prime is 38087503. The reversal of 38087481 is 18478083.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38087481 - 21 = 38087479 is a prime.
It is a super-2 number, since 2×380874812 = 2901312417850722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38087081) 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, 7621 + ... + 11586.
It is an arithmetic number, because the mean of its divisors is an integer number (6357848).
Almost surely, 238087481 is an apocalyptic number.
It is an amenable number.
38087481 is a deficient number, since it is larger than the sum of its proper divisors (12775303).
38087481 is a wasteful number, since it uses less digits than its factorization.
38087481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19871.
The product of its (nonzero) digits is 43008, while the sum is 39.
The square root of 38087481 is about 6171.5055699562. The cubic root of 38087481 is about 336.4553332819.
The spelling of 38087481 in words is "thirty-eight million, eighty-seven thousand, four hundred eighty-one".
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