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3712885 = 511217192
BaseRepresentation
bin1110001010011101110101
320222122010021
432022131311
51422303020
6211325141
743362511
oct16123565
96878107
103712885
112106600
1212b07b1
139ccc97
146c9141
154d51aa
hex38a775

3712885 has 36 divisors (see below), whose sum is σ = 5472684. Its totient is φ = 2407680.

The previous prime is 3712873. The next prime is 3712889. The reversal of 3712885 is 5882173.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 1572516 = 1463^2 + 1254^2 .

It is not a de Polignac number, because 3712885 - 27 = 3712757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3712885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3712889) 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 35 ways as a sum of consecutive naturals, for example, 195406 + ... + 195424.

It is an arithmetic number, because the mean of its divisors is an integer number (152019).

Almost surely, 23712885 is an apocalyptic number.

It is an amenable number.

3712885 is a deficient number, since it is larger than the sum of its proper divisors (1759799).

3712885 is a wasteful number, since it uses less digits than its factorization.

3712885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 52 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 3712885 is about 1926.8847915742. The cubic root of 3712885 is about 154.8473696970.

It can be divided in two parts, 371288 and 5, that added together give a 5-th power (371293 = 135).

The spelling of 3712885 in words is "three million, seven hundred twelve thousand, eight hundred eighty-five".

Divisors: 1 5 11 17 19 55 85 95 121 187 209 323 361 605 935 1045 1615 1805 2057 2299 3553 3971 6137 10285 11495 17765 19855 30685 39083 43681 67507 195415 218405 337535 742577 3712885