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38395144 = 234799393
BaseRepresentation
bin1001001001110…
…1110100001000
32200020200020101
42102131310020
534312121034
63450535144
7644232124
oct222356410
980220211
1038395144
111a744927
1210a374b4
137c54228
145156584
153586514
hex249dd08

38395144 has 8 divisors (see below), whose sum is σ = 71990910. Its totient is φ = 19197568.

The previous prime is 38395121. The next prime is 38395151. The reversal of 38395144 is 44159383.

It can be written as a sum of positive squares in only one way, i.e., 34928100 + 3467044 = 5910^2 + 1862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 2399689 + ... + 2399704.

Almost surely, 238395144 is an apocalyptic number.

It is an amenable number.

38395144 is a deficient number, since it is larger than the sum of its proper divisors (33595766).

38395144 is a wasteful number, since it uses less digits than its factorization.

38395144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799399 (or 4799395 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 38395144 is about 6196.3815247288. The cubic root of 38395144 is about 337.3588443093.

The spelling of 38395144 in words is "thirty-eight million, three hundred ninety-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 4799393 9598786 19197572 38395144