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38286943 = 317120779
BaseRepresentation
bin1001001000001…
…1011001011111
32200001011210221
42102003121133
534300140233
63444342211
7643301512
oct222033137
980034727
1038286943
111a680602
12109a4967
137c16bc6
145128d79
15356442d
hex248365f

38286943 has 4 divisors (see below), whose sum is σ = 38408040. Its totient is φ = 38165848.

The previous prime is 38286917. The next prime is 38287001. The reversal of 38286943 is 34968283.

38286943 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38286943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38286943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38286343) 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, 60073 + ... + 60706.

It is an arithmetic number, because the mean of its divisors is an integer number (9602010).

Almost surely, 238286943 is an apocalyptic number.

38286943 is a deficient number, since it is larger than the sum of its proper divisors (121097).

38286943 is a wasteful number, since it uses less digits than its factorization.

38286943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121096.

The product of its digits is 248832, while the sum is 43.

The square root of 38286943 is about 6187.6443821538. The cubic root of 38286943 is about 337.0416435432.

The spelling of 38286943 in words is "thirty-eight million, two hundred eighty-six thousand, nine hundred forty-three".

Divisors: 1 317 120779 38286943