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207104 = 28809
BaseRepresentation
bin110010100100000000
3101112002112
4302210000
523111404
64234452
71521542
oct624400
9345075
10207104
11131667
129ba28
1373361
1455692
154156e
hex32900

207104 has 18 divisors (see below), whose sum is σ = 413910. Its totient is φ = 103424.

The previous prime is 207079. The next prime is 207113. The reversal of 207104 is 401702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 200704 + 6400 = 448^2 + 80^2 .

It is an unprimeable number.

207104 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149 + ... + 660.

It is an arithmetic number, because the mean of its divisors is an integer number (22995).

2207104 is an apocalyptic number.

It is an amenable number.

207104 is a deficient number, since it is larger than the sum of its proper divisors (206806).

207104 is an frugal number, since it uses more digits than its factorization.

207104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 207104 is about 455.0868049065. The cubic root of 207104 is about 59.1647221032.

Adding to 207104 its reverse (401702), we get a palindrome (608806).

It can be divided in two parts, 207 and 104, that multiplied together give a triangular number (21528 = T207).

The spelling of 207104 in words is "two hundred seven thousand, one hundred four", and thus it is an iban number.

Divisors: 1 2 4 8 16 32 64 128 256 809 1618 3236 6472 12944 25888 51776 103552 207104