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530451340 = 225178318797
BaseRepresentation
bin11111100111100…
…000101110001100
31100222010201102221
4133213200232030
52041243420330
6124345225124
716100522236
oct3747405614
91328121387
10530451340
11252475a41
121297921a4
1385b87643
1450641256
1531880b7a
hex1f9e0b8c

530451340 has 48 divisors (see below), whose sum is σ = 1193748192. Its totient is φ = 197282816.

The previous prime is 530451307. The next prime is 530451349. The reversal of 530451340 is 43154035.

It is not an unprimeable number, because it can be changed into a prime (530451349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18822 + ... + 37618.

It is an arithmetic number, because the mean of its divisors is an integer number (24869754).

Almost surely, 2530451340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530451340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596874096).

530451340 is an abundant number, since it is smaller than the sum of its proper divisors (663296852).

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

530451340 is a wasteful number, since it uses less digits than its factorization.

530451340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18906 (or 18904 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 530451340 is about 23031.5292588226. The cubic root of 530451340 is about 809.4968881990.

It can be divided in two parts, 5304 and 51340, that added together give a square (56644 = 2382).

The spelling of 530451340 in words is "five hundred thirty million, four hundred fifty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 83 85 166 170 332 340 415 830 1411 1660 2822 5644 7055 14110 18797 28220 37594 75188 93985 187970 319549 375940 639098 1278196 1560151 1597745 3120302 3195490 6240604 6390980 7800755 15601510 26522567 31203020 53045134 106090268 132612835 265225670 530451340