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38383149 = 3717910211
BaseRepresentation
bin1001001001101…
…0111000101101
32200020001210010
42102122320231
534311230044
63450403433
7644152140
oct222327055
980201703
1038383149
111a736912
1210a30579
137c4b92c
145152057
153582bb9
hex249ae2d

38383149 has 16 divisors (see below), whose sum is σ = 58821120. Its totient is φ = 21808560.

The previous prime is 38383141. The next prime is 38383193. The reversal of 38383149 is 94138383.

38383149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38383149 - 23 = 38383141 is a prime.

It is a super-2 number, since 2×383831492 = 2946532254312402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38383141) 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 15 ways as a sum of consecutive naturals, for example, 1347 + ... + 8864.

It is an arithmetic number, because the mean of its divisors is an integer number (3676320).

Almost surely, 238383149 is an apocalyptic number.

It is an amenable number.

38383149 is a deficient number, since it is larger than the sum of its proper divisors (20437971).

38383149 is a wasteful number, since it uses less digits than its factorization.

38383149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10400.

The product of its digits is 62208, while the sum is 39.

The square root of 38383149 is about 6195.4135455190. The cubic root of 38383149 is about 337.3237093036.

The spelling of 38383149 in words is "thirty-eight million, three hundred eighty-three thousand, one hundred forty-nine".

Divisors: 1 3 7 21 179 537 1253 3759 10211 30633 71477 214431 1827769 5483307 12794383 38383149