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51937740080 = 24553107239479
BaseRepresentation
bin110000010111101110…
…110000010100110000
311222001122000120021222
4300113232300110300
51322332030140310
635505422004212
73516031335512
oct602756602460
9158048016258
1051937740080
1120032555936
12a095a16668
134b893585a5
142729c1dbb2
15153ea5a055
hexc17bb0530

51937740080 has 160 divisors (see below), whose sum is σ = 124963430400. Its totient is φ = 20066149376.

The previous prime is 51937740079. The next prime is 51937740089. The reversal of 51937740080 is 8004773915.

It is not an unprimeable number, because it can be changed into a prime (51937740089) 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, 108429281 + ... + 108429759.

It is an arithmetic number, because the mean of its divisors is an integer number (781021440).

Almost surely, 251937740080 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 51937740080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62481715200).

51937740080 is an abundant number, since it is smaller than the sum of its proper divisors (73025690320).

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

51937740080 is a wasteful number, since it uses less digits than its factorization.

51937740080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 51937740080 in words is "fifty-one billion, nine hundred thirty-seven million, seven hundred forty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 107 212 214 239 265 424 428 478 479 530 535 848 856 956 958 1060 1070 1195 1712 1912 1916 2120 2140 2390 2395 3824 3832 4240 4280 4780 4790 5671 7664 8560 9560 9580 11342 12667 19120 19160 22684 25334 25387 25573 28355 38320 45368 50668 50774 51146 51253 56710 63335 90736 101336 101548 102292 102506 113420 114481 126670 126935 127865 202672 203096 204584 205012 226840 228962 253340 253870 255730 256265 406192 409168 410024 453680 457924 506680 507740 511460 512530 572405 820048 915848 1013360 1015480 1022920 1025060 1144810 1355369 1831696 2030960 2045840 2050120 2289620 2710738 2716409 4100240 4579240 5421476 5432818 6067493 6776845 9158480 10842952 10865636 12134986 12249467 13553690 13582045 21685904 21731272 24269972 24498934 27107380 27164090 30337465 43462544 48539944 48997868 54214760 54328180 60674930 61247335 97079888 97995736 108429520 108656360 121349860 122494670 195991472 217312720 242699720 244989340 485399440 489978680 649221751 979957360 1298443502 2596887004 3246108755 5193774008 6492217510 10387548016 12984435020 25968870040 51937740080