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38067681 = 323953093
BaseRepresentation
bin1001000100110…
…1110111100001
32122122001001010
42101031313201
534221131211
63435531133
7641366331
oct221156741
978561033
1038067681
111a5408a3
12108b9aa9
137b6b172
1450ad0c1
15351e4a6
hex244dde1

38067681 has 8 divisors (see below), whose sum is σ = 50970240. Its totient is φ = 25271792.

The previous prime is 38067677. The next prime is 38067707. The reversal of 38067681 is 18676083.

38067681 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 38067681 - 22 = 38067677 is a prime.

It is a super-2 number, since 2×380676812 = 2898296673435522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38067671) 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, 25830 + ... + 27263.

It is an arithmetic number, because the mean of its divisors is an integer number (6371280).

Almost surely, 238067681 is an apocalyptic number.

It is an amenable number.

38067681 is a deficient number, since it is larger than the sum of its proper divisors (12902559).

38067681 is a wasteful number, since it uses less digits than its factorization.

38067681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53335.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 38067681 is about 6169.9012147684. The cubic root of 38067681 is about 336.3970204176.

The spelling of 38067681 in words is "thirty-eight million, sixty-seven thousand, six hundred eighty-one".

Divisors: 1 3 239 717 53093 159279 12689227 38067681