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530351780 = 22573788227
BaseRepresentation
bin11111100111001…
…000011010100100
31100221221122212112
4133213020122210
52041232224110
6124343140152
716066626050
oct3747103244
91327848775
10530351780
11252408162
12129744658
1385b5122a
1450616c60
1531861405
hex1f9c86a4

530351780 has 24 divisors (see below), whose sum is σ = 1272844608. Its totient is φ = 181834848.

The previous prime is 530351719. The next prime is 530351791. The reversal of 530351780 is 87153035.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893974 + ... + 1894253.

It is an arithmetic number, because the mean of its divisors is an integer number (53035192).

Almost surely, 2530351780 is an apocalyptic number.

It is an amenable number.

530351780 is an abundant number, since it is smaller than the sum of its proper divisors (742492828).

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

530351780 is a wasteful number, since it uses less digits than its factorization.

530351780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788243 (or 3788241 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 530351780 is about 23029.3677724770. The cubic root of 530351780 is about 809.4462404161.

The spelling of 530351780 in words is "five hundred thirty million, three hundred fifty-one thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3788227 7576454 15152908 18941135 26517589 37882270 53035178 75764540 106070356 132587945 265175890 530351780