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5120245 = 513372129
BaseRepresentation
bin10011100010000011110101
3100122010122201
4103202003311
52302321440
6301424501
761343554
oct23420365
910563581
105120245
112987a09
12186b131
1310a3740
14973d9b
156b219a
hex4e20f5

5120245 has 16 divisors (see below), whose sum is σ = 6798960. Its totient is φ = 3677184.

The previous prime is 5120231. The next prime is 5120249. The reversal of 5120245 is 5420215.

5120245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 142884 + 4977361 = 378^2 + 2231^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120245 - 27 = 5120117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1341 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (424935).

Almost surely, 25120245 is an apocalyptic number.

It is an amenable number.

5120245 is a deficient number, since it is larger than the sum of its proper divisors (1678715).

5120245 is a wasteful number, since it uses less digits than its factorization.

5120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5120245 is about 2262.7958370123. The cubic root of 5120245 is about 172.3575243071.

It can be divided in two parts, 5120 and 245, that multiplied together give a square (1254400 = 11202).

The spelling of 5120245 in words is "five million, one hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 13 37 65 185 481 2129 2405 10645 27677 78773 138385 393865 1024049 5120245