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38857141 = 371795867
BaseRepresentation
bin1001010000111…
…0100110110101
32201010010222101
42110032212311
534421412031
63504502101
7651165061
oct224164665
981103871
1038857141
111aa2aa44
121101a931
1380865bb
145236aa1
153628361
hex250e9b5

38857141 has 8 divisors (see below), whose sum is σ = 40137120. Its totient is φ = 37589328.

The previous prime is 38857139. The next prime is 38857151. The reversal of 38857141 is 14175883.

38857141 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.

It is a cyclic number.

It is not a de Polignac number, because 38857141 - 21 = 38857139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38857141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857151) 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 7 ways as a sum of consecutive naturals, for example, 3690 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (5017140).

Almost surely, 238857141 is an apocalyptic number.

It is an amenable number.

38857141 is a deficient number, since it is larger than the sum of its proper divisors (1279979).

38857141 is a wasteful number, since it uses less digits than its factorization.

38857141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083.

The product of its digits is 26880, while the sum is 37.

The square root of 38857141 is about 6233.5496308283. The cubic root of 38857141 is about 338.7065649660.

It can be divided in two parts, 3885 and 7141, that added together give a triangular number (11026 = T148).

The spelling of 38857141 in words is "thirty-eight million, eight hundred fifty-seven thousand, one hundred forty-one".

Divisors: 1 37 179 5867 6623 217079 1050193 38857141