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520230260 = 2251117197321
BaseRepresentation
bin11111000000100…
…001010101110100
31100020220102202102
4133000201111310
52031134332020
6123342201232
715614612204
oct3700412564
91306812672
10520230260
11247724770
12126283218
1383a19274
144d140404
1530a12475
hex1f021574

520230260 has 96 divisors (see below), whose sum is σ = 1328503680. Its totient is φ = 168652800.

The previous prime is 520230257. The next prime is 520230281. The reversal of 520230260 is 62032025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67400 + ... + 74720.

It is an arithmetic number, because the mean of its divisors is an integer number (13838580).

Almost surely, 2520230260 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 520230260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664251840).

520230260 is an abundant number, since it is smaller than the sum of its proper divisors (808273420).

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

520230260 is a wasteful number, since it uses less digits than its factorization.

520230260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377 (or 7375 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520230260 is about 22808.5567276845. The cubic root of 520230260 is about 804.2638280889.

Adding to 520230260 its reverse (62032025), we get a palindrome (582262285).

The spelling of 520230260 in words is "five hundred twenty million, two hundred thirty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 11 17 19 20 22 34 38 44 55 68 76 85 95 110 170 187 190 209 220 323 340 374 380 418 646 748 836 935 1045 1292 1615 1870 2090 3230 3553 3740 4180 6460 7106 7321 14212 14642 17765 29284 35530 36605 71060 73210 80531 124457 139099 146420 161062 248914 278198 322124 402655 497828 556396 622285 695495 805310 1244570 1369027 1390990 1530089 1610620 2364683 2489140 2738054 2781980 3060178 4729366 5476108 6120356 6845135 7650445 9458732 11823415 13690270 15300890 23646830 26011513 27380540 30601780 47293660 52023026 104046052 130057565 260115130 520230260