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51942379080 = 233529109113681
BaseRepresentation
bin110000011000000000…
…011100111001001000
311222001221202020210210
4300120000130321020
51322334222112310
635510105241120
73516115636344
oct603000347110
9158057666723
1051942379080
1120035134219
12a0974931a0
134b8a2c0c67
14272a6aa624
151540174820
hexc1801ce48

51942379080 has 128 divisors (see below), whose sum is σ = 161360035200. Its totient is φ = 13360435200.

The previous prime is 51942379067. The next prime is 51942379121. The reversal of 51942379080 is 8097324915.

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, 3789840 + ... + 3803520.

It is an arithmetic number, because the mean of its divisors is an integer number (1260625275).

Almost surely, 251942379080 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 51942379080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80680017600).

51942379080 is an abundant number, since it is smaller than the sum of its proper divisors (109417656120).

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

51942379080 is a wasteful number, since it uses less digits than its factorization.

51942379080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14815 (or 14811 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 51942379080 in words is "fifty-one billion, nine hundred forty-two million, three hundred seventy-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 58 60 87 116 120 145 174 232 290 348 435 580 696 870 1091 1160 1740 2182 3273 3480 4364 5455 6546 8728 10910 13092 13681 16365 21820 26184 27362 31639 32730 41043 43640 54724 63278 65460 68405 82086 94917 109448 126556 130920 136810 158195 164172 189834 205215 253112 273620 316390 328344 379668 396749 410430 474585 547240 632780 759336 793498 820860 949170 1190247 1265560 1586996 1641720 1898340 1983745 2380494 3173992 3796680 3967490 4760988 5951235 7934980 9521976 11902470 14925971 15869960 23804940 29851942 44777913 47609880 59703884 74629855 89555826 119407768 149259710 179111652 223889565 298519420 358223304 432853159 447779130 597038840 865706318 895558260 1298559477 1731412636 1791116520 2164265795 2597118954 3462825272 4328531590 5194237908 6492797385 8657063180 10388475816 12985594770 17314126360 25971189540 51942379080