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51414463656750 = 23531932631350551
BaseRepresentation
bin10111011000010110111001…
…10101111011001100101110
320202001011201101001221200110
423230023130311323030232
523214333310144004000
6301203251210240450
713554400224215505
oct1354133465731456
9222034641057613
1051414463656750
111542282a3a8807
125924573a26126
13228c494a0780c
14c9a68ab0183c
155e261c98c850
hex2ec2dcd7b32e

51414463656750 has 128 divisors (see below), whose sum is σ = 129485998946304. Its totient is φ = 13587613440000.

The previous prime is 51414463656749. The next prime is 51414463656757. The reversal of 51414463656750 is 5765636441415.

It is a happy number.

It is a super-2 number, since 2×514144636567502 (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 (51414463656757) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37393975 + ... + 38744525.

It is an arithmetic number, because the mean of its divisors is an integer number (1011609366768).

Almost surely, 251414463656750 is an apocalyptic number.

51414463656750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51414463656750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64742999473152).

51414463656750 is an abundant number, since it is smaller than the sum of its proper divisors (78071535289554).

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

51414463656750 is a wasteful number, since it uses less digits than its factorization.

51414463656750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351027 (or 1351017 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 57.

The spelling of 51414463656750 in words is "fifty-one trillion, four hundred fourteen billion, four hundred sixty-three million, six hundred fifty-six thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 193 250 263 375 386 526 579 750 789 965 1158 1315 1578 1930 2630 2895 3945 4825 5790 6575 7890 9650 13150 14475 19725 24125 28950 32875 39450 48250 50759 65750 72375 98625 101518 144750 152277 197250 253795 304554 507590 761385 1268975 1350551 1522770 2537950 2701102 3806925 4051653 6344875 6752755 7613850 8103306 12689750 13505510 19034625 20258265 33763775 38069250 40516530 67527550 101291325 168818875 202582650 260656343 337637750 355194913 506456625 521312686 710389826 781969029 1012913250 1065584739 1303281715 1563938058 1775974565 2131169478 2606563430 3551949130 3909845145 5327923695 6516408575 7819690290 8879872825 10655847390 13032817150 17759745650 19549225725 26639618475 32582042875 39098451450 44399364125 53279236950 65164085750 68552618209 88798728250 97746128625 133198092375 137105236418 195492257250 205657854627 266396184750 342763091045 411315709254 685526182090 1028289273135 1713815455225 2056578546270 3427630910450 5141446365675 8569077276125 10282892731350 17138154552250 25707231828375 51414463656750