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38840075 = 5213911177
BaseRepresentation
bin1001010000101…
…0011100001011
32201002021120022
42110022130023
534420340300
63504251055
7651064241
oct224123413
981067508
1038840075
111aa1913a
1211010a8b
13807b8c1
145230791
153623285
hex250a70b

38840075 has 12 divisors (see below), whose sum is σ = 48512520. Its totient is φ = 30845760.

The previous prime is 38840071. The next prime is 38840083. The reversal of 38840075 is 57004883.

It is not a de Polignac number, because 38840075 - 22 = 38840071 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38840071) 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 11 ways as a sum of consecutive naturals, for example, 2114 + ... + 9063.

It is an arithmetic number, because the mean of its divisors is an integer number (4042710).

Almost surely, 238840075 is an apocalyptic number.

38840075 is a deficient number, since it is larger than the sum of its proper divisors (9672445).

38840075 is a wasteful number, since it uses less digits than its factorization.

38840075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11326 (or 11321 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 38840075 is about 6232.1805975116. The cubic root of 38840075 is about 338.6569712274.

The spelling of 38840075 in words is "thirty-eight million, eight hundred forty thousand, seventy-five".

Divisors: 1 5 25 139 695 3475 11177 55885 279425 1553603 7768015 38840075