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3896388 = 2232108233
BaseRepresentation
bin1110110111010001000100
321022221211200
432313101010
51444141023
6215302500
745055506
oct16672104
97287750
103896388
112221461
12137aa30
13a65672
14735d76
1551e743
hex3b7444

3896388 has 18 divisors (see below), whose sum is σ = 9849294. Its totient is φ = 1298784.

The previous prime is 3896381. The next prime is 3896413. The reversal of 3896388 is 8836983.

3896388 is a `hidden beast` number, since 3 + 8 + 9 + 638 + 8 = 666.

3896388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3617604 + 278784 = 1902^2 + 528^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (3896381) 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 5 ways as a sum of consecutive naturals, for example, 54081 + ... + 54152.

It is an arithmetic number, because the mean of its divisors is an integer number (547183).

Almost surely, 23896388 is an apocalyptic number.

It is an amenable number.

3896388 is an abundant number, since it is smaller than the sum of its proper divisors (5952906).

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

3896388 is a wasteful number, since it uses less digits than its factorization.

3896388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108243 (or 108238 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 3896388 is about 1973.9270503238. The cubic root of 3896388 is about 157.3574825678.

The spelling of 3896388 in words is "three million, eight hundred ninety-six thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 108233 216466 324699 432932 649398 974097 1298796 1948194 3896388