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38330161 = 46918171
BaseRepresentation
bin1001001000110…
…1111100110001
32200010101002121
42102031330301
534303031121
63445314241
7643541512
oct222157461
980111077
1038330161
111a700021
1210a05981
137c3078c
14513aa09
153572141
hex248df31

38330161 has 4 divisors (see below), whose sum is σ = 38343024. Its totient is φ = 38317300.

The previous prime is 38330153. The next prime is 38330179. The reversal of 38330161 is 16103383.

It is a happy number.

38330161 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16103383 = 67240349.

It is a cyclic number.

It is not a de Polignac number, because 38330161 - 23 = 38330153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38330191) 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, 606 + ... + 8776.

It is an arithmetic number, because the mean of its divisors is an integer number (9585756).

Almost surely, 238330161 is an apocalyptic number.

It is an amenable number.

38330161 is a deficient number, since it is larger than the sum of its proper divisors (12863).

38330161 is an equidigital number, since it uses as much as digits as its factorization.

38330161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12862.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 38330161 is about 6191.1356793403. The cubic root of 38330161 is about 337.1684125083.

The spelling of 38330161 in words is "thirty-eight million, three hundred thirty thousand, one hundred sixty-one".

Divisors: 1 4691 8171 38330161