Search a number
-
+
4387138 = 271916493
BaseRepresentation
bin10000101111000101000010
322020220000121
4100233011002
52110342023
6234010454
752201330
oct20570502
98226017
104387138
112527138
121576a2a
13ba7b52
14822b50
155b9d5d
hex42f142

4387138 has 16 divisors (see below), whose sum is σ = 7917120. Its totient is φ = 1781136.

The previous prime is 4387133. The next prime is 4387147. The reversal of 4387138 is 8317834.

It is not an unprimeable number, because it can be changed into a prime (4387133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7981 + ... + 8512.

It is an arithmetic number, because the mean of its divisors is an integer number (494820).

Almost surely, 24387138 is an apocalyptic number.

4387138 is a deficient number, since it is larger than the sum of its proper divisors (3529982).

4387138 is a wasteful number, since it uses less digits than its factorization.

4387138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521.

The product of its digits is 16128, while the sum is 34.

The square root of 4387138 is about 2094.5495935881. The cubic root of 4387138 is about 163.7044299510.

The spelling of 4387138 in words is "four million, three hundred eighty-seven thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 19 38 133 266 16493 32986 115451 230902 313367 626734 2193569 4387138