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38066819 = 741132637
BaseRepresentation
bin1001000100110…
…1101010000011
32122121222212012
42101031222003
534221114234
63435523135
7641363660
oct221155203
978558765
1038066819
111a54018a
12108b94ab
137b6a95b
1450aca67
15351e0ce
hex244da83

38066819 has 8 divisors (see below), whose sum is σ = 44566368. Its totient is φ = 31832640.

The previous prime is 38066803. The next prime is 38066827. The reversal of 38066819 is 91866083.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38066819 - 24 = 38066803 is a prime.

It is a super-3 number, since 3×380668193 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (38066719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66032 + ... + 66605.

It is an arithmetic number, because the mean of its divisors is an integer number (5570796).

Almost surely, 238066819 is an apocalyptic number.

38066819 is a deficient number, since it is larger than the sum of its proper divisors (6499549).

38066819 is a wasteful number, since it uses less digits than its factorization.

38066819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132685.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 38066819 is about 6169.8313591216. The cubic root of 38066819 is about 336.3944812872.

The spelling of 38066819 in words is "thirty-eight million, sixty-six thousand, eight hundred nineteen".

Divisors: 1 7 41 287 132637 928459 5438117 38066819