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5380820 = 225269041
BaseRepresentation
bin10100100001101011010100
3101010101002122
4110201223110
52334141240
6311155112
763510344
oct24415324
911111078
105380820
113045765
121975a98
131165223
14a00d24
157144b5
hex521ad4

5380820 has 12 divisors (see below), whose sum is σ = 11299764. Its totient is φ = 2152320.

The previous prime is 5380811. The next prime is 5380831. The reversal of 5380820 is 280835.

It can be written as a sum of positive squares in 2 ways, for example, as 835396 + 4545424 = 914^2 + 2132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5380820.

It is a congruent 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, 134501 + ... + 134540.

It is an arithmetic number, because the mean of its divisors is an integer number (941647).

Almost surely, 25380820 is an apocalyptic number.

It is an amenable number.

5380820 is an abundant number, since it is smaller than the sum of its proper divisors (5918944).

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

5380820 is a wasteful number, since it uses less digits than its factorization.

5380820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269050 (or 269048 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5380820 is about 2319.6594577653. The cubic root of 5380820 is about 175.2331043274.

The spelling of 5380820 in words is "five million, three hundred eighty thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 269041 538082 1076164 1345205 2690410 5380820