Search a number
-
+
38349487 = 1123151579
BaseRepresentation
bin1001001001001…
…0101010101111
32200011100121101
42102102222233
534304140422
63445543531
7643652041
oct222225257
980140541
1038349487
111a7135a0
1210a14ba7
137c39507
145143a91
153577c27
hex2492aaf

38349487 has 8 divisors (see below), whose sum is σ = 43655040. Its totient is φ = 33347160.

The previous prime is 38349463. The next prime is 38349491. The reversal of 38349487 is 78494383.

38349487 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 38349487 - 27 = 38349359 is a prime.

It is a super-3 number, since 3×383494873 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38349287) 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, 75537 + ... + 76042.

It is an arithmetic number, because the mean of its divisors is an integer number (5456880).

Almost surely, 238349487 is an apocalyptic number.

38349487 is a deficient number, since it is larger than the sum of its proper divisors (5305553).

38349487 is a wasteful number, since it uses less digits than its factorization.

38349487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151613.

The product of its digits is 580608, while the sum is 46.

The square root of 38349487 is about 6192.6962625338. The cubic root of 38349487 is about 337.2250695614.

Subtracting 38349487 from its reverse (78494383), we obtain a square (40144896 = 63362).

The spelling of 38349487 in words is "thirty-eight million, three hundred forty-nine thousand, four hundred eighty-seven".

Divisors: 1 11 23 253 151579 1667369 3486317 38349487