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52805480 = 23571389163
BaseRepresentation
bin1100100101101…
…1111101101000
310200100210111112
43021123331220
5102004233410
65123445452
71210560560
oct311337550
9120323445
1052805480
11278975a2
1215826888
13ac2b360
147027da0
154981105
hex325bf68

52805480 has 128 divisors (see below), whose sum is σ = 148780800. Its totient is φ = 16422912.

The previous prime is 52805479. The next prime is 52805521. The reversal of 52805480 is 8450825.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323879 + ... + 324041.

It is an arithmetic number, because the mean of its divisors is an integer number (1162350).

Almost surely, 252805480 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 52805480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74390400).

52805480 is an abundant number, since it is smaller than the sum of its proper divisors (95975320).

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

52805480 is a wasteful number, since it uses less digits than its factorization.

52805480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 52805480 is about 7266.7379201400. The cubic root of 52805480 is about 375.1684694886.

The spelling of 52805480 in words is "fifty-two million, eight hundred five thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 89 91 104 130 140 163 178 182 260 280 326 356 364 445 455 520 623 652 712 728 815 890 910 1141 1157 1246 1304 1630 1780 1820 2119 2282 2314 2492 3115 3260 3560 3640 4238 4564 4628 4984 5705 5785 6230 6520 8099 8476 9128 9256 10595 11410 11570 12460 14507 14833 16198 16952 21190 22820 23140 24920 29014 29666 32396 40495 42380 45640 46280 58028 59332 64792 72535 74165 80990 84760 101549 116056 118664 145070 148330 161980 188591 203098 290140 296660 323960 377182 406196 507745 580280 593320 754364 812392 942955 1015490 1320137 1508728 1885910 2030980 2640274 3771820 4061960 5280548 6600685 7543640 10561096 13201370 26402740 52805480