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5247901 = 5399017
BaseRepresentation
bin10100000001001110011101
3100212121202201
4110001032131
52320413101
6304251501
762415001
oct24011635
910777681
105247901
112a6490a
121910b91
131119889
149a8701
156d9e01
hex50139d

5247901 has 4 divisors (see below), whose sum is σ = 5346972. Its totient is φ = 5148832.

The previous prime is 5247899. The next prime is 5247911. The reversal of 5247901 is 1097425.

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 1267876 + 3980025 = 1126^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 5247901 - 21 = 5247899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5247901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5247911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49456 + ... + 49561.

It is an arithmetic number, because the mean of its divisors is an integer number (1336743).

Almost surely, 25247901 is an apocalyptic number.

5247901 is the 1225-th centered heptagonal number.

It is an amenable number.

5247901 is a deficient number, since it is larger than the sum of its proper divisors (99071).

5247901 is an equidigital number, since it uses as much as digits as its factorization.

5247901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99070.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 5247901 is about 2290.8297623350. The cubic root of 5247901 is about 173.7781666808.

The spelling of 5247901 in words is "five million, two hundred forty-seven thousand, nine hundred one".

Divisors: 1 53 99017 5247901