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38313994 = 2191008263
BaseRepresentation
bin1001001000101…
…0000000001010
32200002112220211
42102022000022
534302021434
63445111334
7643443415
oct222120012
980075824
1038313994
111a699964
12109b854a
137c26304
145134b7c
15356c464
hex248a00a

38313994 has 8 divisors (see below), whose sum is σ = 60495840. Its totient is φ = 18148716.

The previous prime is 38313983. The next prime is 38313997. The reversal of 38313994 is 49931383.

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

It is not an unprimeable number, because it can be changed into a prime (38313997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504094 + ... + 504169.

It is an arithmetic number, because the mean of its divisors is an integer number (7561980).

Almost surely, 238313994 is an apocalyptic number.

38313994 is a deficient number, since it is larger than the sum of its proper divisors (22181846).

38313994 is a wasteful number, since it uses less digits than its factorization.

38313994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008284.

The product of its digits is 69984, while the sum is 40.

The square root of 38313994 is about 6189.8298845768. The cubic root of 38313994 is about 337.1210019040.

The spelling of 38313994 in words is "thirty-eight million, three hundred thirteen thousand, nine hundred ninety-four".

Divisors: 1 2 19 38 1008263 2016526 19156997 38313994