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3730005 = 32582889
BaseRepresentation
bin1110001110101001010101
321000111121100
432032221111
51423330010
6211540313
743463436
oct16165125
97014540
103730005
112118454
1212ba699
13a07a06
146d148d
154da2c0
hex38ea55

3730005 has 12 divisors (see below), whose sum is σ = 6465420. Its totient is φ = 1989312.

The previous prime is 3730003. The next prime is 3730019. The reversal of 3730005 is 5000373.

It can be written as a sum of positive squares in 2 ways, for example, as 2187441 + 1542564 = 1479^2 + 1242^2 .

It is not a de Polignac number, because 3730005 - 21 = 3730003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3730005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3730003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41400 + ... + 41489.

It is an arithmetic number, because the mean of its divisors is an integer number (538785).

Almost surely, 23730005 is an apocalyptic number.

It is an amenable number.

3730005 is a deficient number, since it is larger than the sum of its proper divisors (2735415).

3730005 is a wasteful number, since it uses less digits than its factorization.

3730005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82900 (or 82897 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 3730005 is about 1931.3220860333. The cubic root of 3730005 is about 155.0850036694.

Adding to 3730005 its reverse (5000373), we get a palindrome (8730378).

The spelling of 3730005 in words is "three million, seven hundred thirty thousand, five".

Divisors: 1 3 5 9 15 45 82889 248667 414445 746001 1243335 3730005