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38944397 is a prime number
BaseRepresentation
bin1001010010001…
…1111010001101
32201021120200002
42110203322031
534432210042
63510414045
7652010342
oct224437215
981246602
1038944397
111aa8a558
1211061325
1380b722b
14525a7c9
153644132
hex2523e8d

38944397 has 2 divisors, whose sum is σ = 38944398. Its totient is φ = 38944396.

The previous prime is 38944391. The next prime is 38944421. The reversal of 38944397 is 79344983.

38944397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 14600041 = 4934^2 + 3821^2 .

It is a cyclic number.

It is not a de Polignac number, because 38944397 - 218 = 38682253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38944391) 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 as a sum of consecutive naturals, namely, 19472198 + 19472199.

It is an arithmetic number, because the mean of its divisors is an integer number (19472199).

Almost surely, 238944397 is an apocalyptic number.

It is an amenable number.

38944397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38944397 is an equidigital number, since it uses as much as digits as its factorization.

38944397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 38944397 is about 6240.5446076444. The cubic root of 38944397 is about 338.9599039486.

The spelling of 38944397 in words is "thirty-eight million, nine hundred forty-four thousand, three hundred ninety-seven".