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38328569 = 71539839
BaseRepresentation
bin1001001000110…
…1100011111001
32200010021220122
42102031203321
534303003234
63445303025
7643534046
oct222154371
980107818
1038328569
111a6a9904
1210a04a75
137c2cb36
14513a1cd
15357192e
hex248d8f9

38328569 has 4 divisors (see below), whose sum is σ = 38868480. Its totient is φ = 37788660.

The previous prime is 38328553. The next prime is 38328599. The reversal of 38328569 is 96582383.

38328569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96582383 = 293330427.

It is a cyclic number.

It is not a de Polignac number, because 38328569 - 24 = 38328553 is a prime.

It is a super-2 number, since 2×383285692 = 2938158403175522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38328539) 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 3 ways as a sum of consecutive naturals, for example, 269849 + ... + 269990.

It is an arithmetic number, because the mean of its divisors is an integer number (9717120).

Almost surely, 238328569 is an apocalyptic number.

It is an amenable number.

38328569 is a deficient number, since it is larger than the sum of its proper divisors (539911).

38328569 is an equidigital number, since it uses as much as digits as its factorization.

38328569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539910.

The product of its digits is 311040, while the sum is 44.

The square root of 38328569 is about 6191.0071070869. The cubic root of 38328569 is about 337.1637444738.

The spelling of 38328569 in words is "thirty-eight million, three hundred twenty-eight thousand, five hundred sixty-nine".

Divisors: 1 71 539839 38328569