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38105313 = 3171574759
BaseRepresentation
bin1001000101011…
…1000011100001
32122200221122220
42101113003201
534223332223
63440421253
7641614131
oct221270341
978627586
1038105313
111a5670a4
1210917829
137b8232c
1450bcac1
15352a6e3
hex24570e1

38105313 has 16 divisors (see below), whose sum is σ = 54149760. Its totient is φ = 23751936.

The previous prime is 38105311. The next prime is 38105323. The reversal of 38105313 is 31350183.

It is not a de Polignac number, because 38105313 - 21 = 38105311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38105311) 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 15 ways as a sum of consecutive naturals, for example, 5628 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (3384360).

Almost surely, 238105313 is an apocalyptic number.

It is an amenable number.

38105313 is a deficient number, since it is larger than the sum of its proper divisors (16044447).

38105313 is a wasteful number, since it uses less digits than its factorization.

38105313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 38105313 is about 6172.9501050956. The cubic root of 38105313 is about 336.5078329070.

Adding to 38105313 its reverse (31350183), we get a palindrome (69455496).

The spelling of 38105313 in words is "thirty-eight million, one hundred five thousand, three hundred thirteen".

Divisors: 1 3 17 51 157 471 2669 4759 8007 14277 80903 242709 747163 2241489 12701771 38105313