Search a number
-
+
38411989 = 711498857
BaseRepresentation
bin1001001010000…
…1111011010101
32200021112100021
42102201323111
534313140424
63451145141
7644332210
oct222417325
980245307
1038411989
111a756550
1210a451b1
137c5bab5
14515c777
15358b4e4
hex24a1ed5

38411989 has 8 divisors (see below), whose sum is σ = 47890368. Its totient is φ = 29931360.

The previous prime is 38411983. The next prime is 38412041. The reversal of 38411989 is 98911483.

38411989 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 38411989 - 27 = 38411861 is a prime.

It is a super-2 number, since 2×384119892 = 2950961797872242, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38411983) 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, 249352 + ... + 249505.

It is an arithmetic number, because the mean of its divisors is an integer number (5986296).

Almost surely, 238411989 is an apocalyptic number.

It is an amenable number.

38411989 is a deficient number, since it is larger than the sum of its proper divisors (9478379).

38411989 is a wasteful number, since it uses less digits than its factorization.

38411989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498875.

The product of its digits is 62208, while the sum is 43.

The square root of 38411989 is about 6197.7406367159. The cubic root of 38411989 is about 337.4081732806.

The spelling of 38411989 in words is "thirty-eight million, four hundred eleven thousand, nine hundred eighty-nine".

Divisors: 1 7 11 77 498857 3491999 5487427 38411989