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38196385 = 57639277
BaseRepresentation
bin1001000110110…
…1010010100001
32122212120120221
42101231102201
534234241020
63442403041
7642443503
oct221552241
978776527
1038196385
111a619567
1210960481
137bb4916
145103d73
1535476aa
hex246d4a1

38196385 has 4 divisors (see below), whose sum is σ = 45835668. Its totient is φ = 30557104.

The previous prime is 38196377. The next prime is 38196391. The reversal of 38196385 is 58369183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17338896 + 20857489 = 4164^2 + 4567^2 .

It is a cyclic number.

It is not a de Polignac number, because 38196385 - 23 = 38196377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3819634 + ... + 3819643.

It is an arithmetic number, because the mean of its divisors is an integer number (11458917).

Almost surely, 238196385 is an apocalyptic number.

It is an amenable number.

38196385 is a deficient number, since it is larger than the sum of its proper divisors (7639283).

38196385 is an equidigital number, since it uses as much as digits as its factorization.

38196385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639282.

The product of its digits is 155520, while the sum is 43.

The square root of 38196385 is about 6180.3224025936. The cubic root of 38196385 is about 336.7757050770.

The spelling of 38196385 in words is "thirty-eight million, one hundred ninety-six thousand, three hundred eighty-five".

Divisors: 1 5 7639277 38196385