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38381193 = 3231137567
BaseRepresentation
bin1001001001101…
…0011010001001
32200012222002200
42102122122021
534311144233
63450350413
7644143344
oct222323211
980188080
1038381193
111a7353a4
1210a2b409
137c4aa86
14515145b
153582313
hex249a689

38381193 has 12 divisors (see below), whose sum is σ = 57228288. Its totient is φ = 24761880.

The previous prime is 38381177. The next prime is 38381201. The reversal of 38381193 is 39118383.

It is not a de Polignac number, because 38381193 - 24 = 38381177 is a prime.

It is a super-2 number, since 2×383811932 = 2946231952206498, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) 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 (38381113) 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, 68505 + ... + 69062.

It is an arithmetic number, because the mean of its divisors is an integer number (4769024).

Almost surely, 238381193 is an apocalyptic number.

It is an amenable number.

38381193 is a deficient number, since it is larger than the sum of its proper divisors (18847095).

38381193 is a wasteful number, since it uses less digits than its factorization.

38381193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137604 (or 137601 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 38381193 is about 6195.2556847962. The cubic root of 38381193 is about 337.3179792163.

The spelling of 38381193 in words is "thirty-eight million, three hundred eighty-one thousand, one hundred ninety-three".

Divisors: 1 3 9 31 93 279 137567 412701 1238103 4264577 12793731 38381193