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5247820 = 225262391
BaseRepresentation
bin10100000001001101001100
3100212121122201
4110001031030
52320412240
6304251244
762414524
oct24011514
910777581
105247820
112a64846
121910b24
131119826
149a8684
156d9d9a
hex50134c

5247820 has 12 divisors (see below), whose sum is σ = 11020464. Its totient is φ = 2099120.

The previous prime is 5247793. The next prime is 5247871. The reversal of 5247820 is 287425.

It is a super-2 number, since 2×52478202 = 55079229504800, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131176 + ... + 131215.

It is an arithmetic number, because the mean of its divisors is an integer number (918372).

Almost surely, 25247820 is an apocalyptic number.

It is an amenable number.

5247820 is an abundant number, since it is smaller than the sum of its proper divisors (5772644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5247820 is a wasteful number, since it uses less digits than its factorization.

5247820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262400 (or 262398 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 5247820 is about 2290.8120830832. The cubic root of 5247820 is about 173.7772726025. Note that the first 3 decimals are identical.

The spelling of 5247820 in words is "five million, two hundred forty-seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 262391 524782 1049564 1311955 2623910 5247820