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3871125 = 33533137
BaseRepresentation
bin1110110001000110010101
321021200012000
432301012111
51442334000
6214545513
744622036
oct16610625
97250160
103871125
112204485
121368299
13a5700b
1472aa8d
15517000
hex3b1195

3871125 has 64 divisors (see below), whose sum is σ = 7587840. Its totient is φ = 1944000.

The previous prime is 3871111. The next prime is 3871129. The reversal of 3871125 is 5211783.

3871125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3871125 - 28 = 3870869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871129) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 104607 + ... + 104643.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

Almost surely, 23871125 is an apocalyptic number.

It is an amenable number.

3871125 is a deficient number, since it is larger than the sum of its proper divisors (3716715).

3871125 is a wasteful number, since it uses less digits than its factorization.

3871125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 76 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 3871125 is about 1967.5174713328. The cubic root of 3871125 is about 157.0166588135.

The spelling of 3871125 in words is "three million, eight hundred seventy-one thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 31 37 45 75 93 111 125 135 155 185 225 279 333 375 465 555 675 775 837 925 999 1125 1147 1395 1665 2325 2775 3375 3441 3875 4185 4625 4995 5735 6975 8325 10323 11625 13875 17205 20925 24975 28675 30969 34875 41625 51615 86025 104625 124875 143375 154845 258075 430125 774225 1290375 3871125