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51377017850708 = 221117358723894813
BaseRepresentation
bin10111010111010001001001…
…11001100000101101010100
320201220121001201011220121012
423223220210321200231110
523213230113032210313
6301134135352511352
713551603253136354
oct1353504471405524
9221817051156535
1051377017850708
11154089641a9470
1259192633ab558
132288aa7b7aa34
14c98937850b64
155e167a338da8
hex2eba24e60b54

51377017850708 has 96 divisors (see below), whose sum is σ = 98880316375680. Its totient is φ = 23164130327040.

The previous prime is 51377017850707. The next prime is 51377017850731. The reversal of 51377017850708 is 80705871077315.

It is a super-2 number, since 2×513770178507082 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51377017850707) 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, 10674632510 + ... + 10674637322.

It is an arithmetic number, because the mean of its divisors is an integer number (1030003295580).

Almost surely, 251377017850708 is an apocalyptic number.

It is an amenable number.

51377017850708 is a deficient number, since it is larger than the sum of its proper divisors (47503298524972).

51377017850708 is a wasteful number, since it uses less digits than its factorization.

51377017850708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977 (or 7975 counting only the distinct ones).

The product of its (nonzero) digits is 11524800, while the sum is 59.

The spelling of 51377017850708 in words is "fifty-one trillion, three hundred seventy-seven billion, seventeen million, eight hundred fifty thousand, seven hundred eight".

Divisors: 1 2 4 11 22 44 173 346 587 692 1174 1903 2348 2389 3806 4778 4813 6457 7612 9556 9626 12914 19252 25828 26279 52558 52943 101551 105116 105886 203102 211772 406204 413297 826594 832649 1117061 1402343 1653188 1665298 2234122 2804686 2825231 3330596 4468244 4546267 5609372 5650462 9092534 9159139 11300924 11498257 15425773 18185068 18318278 22996514 30851546 31077541 36636556 45993028 61703092 62155082 124310164 126480827 242605339 252961654 485210678 488764963 505923308 970421356 977529926 1955059852 1989198461 2668658729 3978396922 5337317458 5376414593 6749476859 7956793844 10674634916 10752829186 13498953718 21505658372 21881183071 26997907436 43762366142 74244245449 87524732284 148488490898 296976981796 1167659496607 2335318993214 4670637986428 12844254462677 25688508925354 51377017850708