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530689380 = 2235131935809
BaseRepresentation
bin11111101000011…
…010110101100100
31100222120210222020
4133220122311210
52041324030010
6124354303140
716102533234
oct3750326544
91328523866
10530689380
11252618871
12129887ab0
1385c3bab0
14506a3cc4
15318cb470
hex1fa1ad64

530689380 has 96 divisors (see below), whose sum is σ = 1684502400. Its totient is φ = 123752448.

The previous prime is 530689333. The next prime is 530689381. The reversal of 530689380 is 83986035.

It is not an unprimeable number, because it can be changed into a prime (530689381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3085 + ... + 32724.

It is an arithmetic number, because the mean of its divisors is an integer number (17546900).

Almost surely, 2530689380 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 530689380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842251200).

530689380 is an abundant number, since it is smaller than the sum of its proper divisors (1153813020).

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

530689380 is a wasteful number, since it uses less digits than its factorization.

530689380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853 (or 35851 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 530689380 is about 23036.6963777361. The cubic root of 530689380 is about 809.6179573140.

The spelling of 530689380 in words is "five hundred thirty million, six hundred eighty-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 19 20 26 30 38 39 52 57 60 65 76 78 95 114 130 156 190 195 228 247 260 285 380 390 494 570 741 780 988 1140 1235 1482 2470 2964 3705 4940 7410 14820 35809 71618 107427 143236 179045 214854 358090 429708 465517 537135 680371 716180 931034 1074270 1360742 1396551 1862068 2041113 2148540 2327585 2721484 2793102 3401855 4082226 4655170 5586204 6803710 6982755 8164452 8844823 9310340 10205565 13607420 13965510 17689646 20411130 26534469 27931020 35379292 40822260 44224115 53068938 88448230 106137876 132672345 176896460 265344690 530689380