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3728701 = 6615641
BaseRepresentation
bin1110001110010100111101
321000102211001
432032110331
51423304301
6211530301
743456564
oct16162475
97012731
103728701
112117479
1212b9991
13a07242
146d0bdb
154d9c01
hex38e53d

3728701 has 4 divisors (see below), whose sum is σ = 3735004. Its totient is φ = 3722400.

The previous prime is 3728687. The next prime is 3728713. The reversal of 3728701 is 1078273.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3426201 + 302500 = 1851^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728701 - 29 = 3728189 is a prime.

It is a super-2 number, since 2×37287012 = 27806422294802, which contains 22 as substring.

It is a Duffinian number.

3728701 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3728701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720701) 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 3 ways as a sum of consecutive naturals, for example, 2160 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (933751).

Almost surely, 23728701 is an apocalyptic number.

It is an amenable number.

3728701 is a deficient number, since it is larger than the sum of its proper divisors (6303).

3728701 is an equidigital number, since it uses as much as digits as its factorization.

3728701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 3728701 is about 1930.9844639458. The cubic root of 3728701 is about 155.0669291256.

The spelling of 3728701 in words is "three million, seven hundred twenty-eight thousand, seven hundred one".

Divisors: 1 661 5641 3728701