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51984054588 = 2231710916713999
BaseRepresentation
bin110000011010011111…
…011011100100111100
311222011212011120212010
4300122133123210330
51322430404221323
635514154411220
73520133113314
oct603237334474
9158155146763
1051984054588
1120056709694
12a0a9430b10
134b95b2331b
142732038444
151543b57c93
hexc1a7db93c

51984054588 has 96 divisors (see below), whose sum is σ = 130394880000. Its totient is φ = 16061193216.

The previous prime is 51984054557. The next prime is 51984054599. The reversal of 51984054588 is 88545048915.

It is a congruent number.

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, 3706413 + ... + 3720411.

It is an arithmetic number, because the mean of its divisors is an integer number (1358280000).

Almost surely, 251984054588 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 51984054588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65197440000).

51984054588 is an abundant number, since it is smaller than the sum of its proper divisors (78410825412).

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

51984054588 is a wasteful number, since it uses less digits than its factorization.

51984054588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14299 (or 14297 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 57.

The spelling of 51984054588 in words is "fifty-one billion, nine hundred eighty-four million, fifty-four thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 109 167 204 218 327 334 436 501 654 668 1002 1308 1853 2004 2839 3706 5559 5678 7412 8517 11118 11356 13999 17034 18203 22236 27998 34068 36406 41997 54609 55996 72812 83994 109218 167988 218436 237983 309451 475966 618902 713949 928353 951932 1237804 1427898 1525891 1856706 2337833 2855796 3051782 3713412 4577673 4675666 6103564 7013499 9155346 9351332 14026998 18310692 25940147 28053996 39743161 51880294 77820441 79486322 103760588 119229483 155640882 158972644 238458966 254823797 311281764 476917932 509647594 764471391 1019295188 1528942782 3057885564 4332004549 8664009098 12996013647 17328018196 25992027294 51984054588