Search a number
-
+
38427481 = 1919110589
BaseRepresentation
bin1001001010010…
…1101101011001
32200022022121001
42102211231121
534314134411
63451345001
7644425321
oct222455531
980268531
1038427481
111a767154
1210a52161
137c65b71
145164281
153590dc1
hex24a5b59

38427481 has 8 divisors (see below), whose sum is σ = 40665600. Its totient is φ = 36210960.

The previous prime is 38427479. The next prime is 38427511. The reversal of 38427481 is 18472483.

38427481 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 not a de Polignac number, because 38427481 - 21 = 38427479 is a prime.

It is a super-2 number, since 2×384274812 = 2953342592010722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38427481.

It is not an unprimeable number, because it can be changed into a prime (38427421) 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, 1666 + ... + 8923.

It is an arithmetic number, because the mean of its divisors is an integer number (5083200).

Almost surely, 238427481 is an apocalyptic number.

It is an amenable number.

38427481 is a deficient number, since it is larger than the sum of its proper divisors (2238119).

38427481 is a wasteful number, since it uses less digits than its factorization.

38427481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799.

The product of its digits is 43008, while the sum is 37.

The square root of 38427481 is about 6198.9903210120. The cubic root of 38427481 is about 337.4535273918.

The spelling of 38427481 in words is "thirty-eight million, four hundred twenty-seven thousand, four hundred eighty-one".

Divisors: 1 19 191 3629 10589 201191 2022499 38427481