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38393142 = 236398857
BaseRepresentation
bin1001001001110…
…1010100110110
32200020120111020
42102131110312
534312040032
63450522010
7644223234
oct222352466
980216436
1038393142
111a743377
1210a36306
137c53348
145155954
153585b2c
hex249d536

38393142 has 8 divisors (see below), whose sum is σ = 76786296. Its totient is φ = 12797712.

The previous prime is 38393137. The next prime is 38393143. The reversal of 38393142 is 24139383.

It is a happy number.

38393142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

38393142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38393143) 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, 3199423 + ... + 3199434.

It is an arithmetic number, because the mean of its divisors is an integer number (9598287).

Almost surely, 238393142 is an apocalyptic number.

38393142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38393142 is a wasteful number, since it uses less digits than its factorization.

38393142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6398862.

The product of its digits is 15552, while the sum is 33.

The square root of 38393142 is about 6196.2199767277. The cubic root of 38393142 is about 337.3529806846.

The spelling of 38393142 in words is "thirty-eight million, three hundred ninety-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 6398857 12797714 19196571 38393142