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3680189 = 26913681
BaseRepresentation
bin1110000010011110111101
320220222021022
432002132331
51420231224
6210513525
743165262
oct16023675
96828238
103680189
112093a87
1212958a5
139bb136
146bb269
154ca65e
hex3827bd

3680189 has 4 divisors (see below), whose sum is σ = 3694140. Its totient is φ = 3666240.

The previous prime is 3680153. The next prime is 3680203. The reversal of 3680189 is 9810863.

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 1844164 + 1836025 = 1358^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3680189 - 28 = 3679933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680489) 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, 6572 + ... + 7109.

It is an arithmetic number, because the mean of its divisors is an integer number (923535).

Almost surely, 23680189 is an apocalyptic number.

It is an amenable number.

3680189 is a deficient number, since it is larger than the sum of its proper divisors (13951).

3680189 is a wasteful number, since it uses less digits than its factorization.

3680189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13950.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3680189 is about 1918.3818702229. The cubic root of 3680189 is about 154.3914956120.

The spelling of 3680189 in words is "three million, six hundred eighty thousand, one hundred eighty-nine".

Divisors: 1 269 13681 3680189