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538480564533550 = 252158232179931223
BaseRepresentation
bin111101001101111101100011…
…0110001000111100100101110
32121121121020110101121112012201
41322123323012301013210232
51031034431144010033200
65145130320054452114
7221264636241611362
oct17233730661074456
92547536411545181
10538480564533550
11146638363579991
125048918366403a
131a1606650c8942
1496d8853d772a2
15423c1add68c6a
hex1e9bec6c4792e

538480564533550 has 48 divisors (see below), whose sum is σ = 1001715178982400. Its totient is φ = 215361835244640.

The previous prime is 538480564533521. The next prime is 538480564533599. The reversal of 538480564533550 is 55335465084835.

It is a super-3 number, since 3×5384805645335503 (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17246263239 + ... + 17246294461.

It is an arithmetic number, because the mean of its divisors is an integer number (20869066228800).

Almost surely, 2538480564533550 is an apocalyptic number.

538480564533550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

538480564533550 is a deficient number, since it is larger than the sum of its proper divisors (463234614448850).

538480564533550 is a wasteful number, since it uses less digits than its factorization.

538480564533550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68857 (or 68852 counting only the distinct ones).

The product of its (nonzero) digits is 518400000, while the sum is 64.

The spelling of 538480564533550 in words is "five hundred thirty-eight trillion, four hundred eighty billion, five hundred sixty-four million, five hundred thirty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 15823 21799 31223 31646 43598 62446 79115 108995 156115 158230 217990 312230 395575 544975 780575 791150 1089950 1561150 344925577 494041529 680630177 689851154 988083058 1361260354 1724627885 2470207645 3403150885 3449255770 4940415290 6806301770 8623139425 12351038225 17015754425 17246278850 24702076450 34031508850 10769611290671 21539222581342 53848056453355 107696112906710 269240282266775 538480564533550