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51114750 = 23531719211
BaseRepresentation
bin1100001011111…
…1001011111110
310120011220020220
43002333023332
5101041133000
65023322210
71160316411
oct302771376
9116156226
1051114750
11269422a5
1215150366
13a78891b
146b07b78
15474a1a0
hex30bf2fe

51114750 has 128 divisors (see below), whose sum is σ = 142871040. Its totient is φ = 12096000.

The previous prime is 51114727. The next prime is 51114751. The reversal of 51114750 is 5741115.

It is a super-2 number, since 2×511147502 = 5225435335125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51114750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51114751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242145 + ... + 242355.

It is an arithmetic number, because the mean of its divisors is an integer number (1116180).

Almost surely, 251114750 is an apocalyptic number.

51114750 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 51114750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71435520).

51114750 is an abundant number, since it is smaller than the sum of its proper divisors (91756290).

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

51114750 is a wasteful number, since it uses less digits than its factorization.

51114750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 51114750 is about 7149.4580214167. The cubic root of 51114750 is about 371.1209008205.

Adding to 51114750 its reverse (5741115), we get a palindrome (56855865).

The spelling of 51114750 in words is "fifty-one million, one hundred fourteen thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 19 25 30 34 38 50 51 57 75 85 95 102 114 125 150 170 190 211 250 255 285 323 375 422 425 475 510 570 633 646 750 850 950 969 1055 1266 1275 1425 1615 1938 2110 2125 2375 2550 2850 3165 3230 3587 4009 4250 4750 4845 5275 6330 6375 7125 7174 8018 8075 9690 10550 10761 12027 12750 14250 15825 16150 17935 20045 21522 24054 24225 26375 31650 35870 40090 40375 48450 52750 53805 60135 68153 79125 80750 89675 100225 107610 120270 121125 136306 158250 179350 200450 204459 242250 269025 300675 340765 408918 448375 501125 538050 601350 681530 896750 1002250 1022295 1345125 1503375 1703825 2044590 2690250 3006750 3407650 5111475 8519125 10222950 17038250 25557375 51114750