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71214750 = 23253311021
BaseRepresentation
bin1000011111010…
…10011010011110
311222000002021100
410033222122132
5121212333000
611022213530
71523213115
oct417523236
9158002240
1071214750
1137220772
121ba242a6
13119a5709
14965ac7c
1563baa00
hex43ea69e

71214750 has 96 divisors (see below), whose sum is σ = 198971136. Its totient is φ = 18360000.

The previous prime is 71214743. The next prime is 71214763. The reversal of 71214750 is 5741217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69240 + ... + 70260.

It is an arithmetic number, because the mean of its divisors is an integer number (2072616).

Almost surely, 271214750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71214750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99485568).

71214750 is an abundant number, since it is smaller than the sum of its proper divisors (127756386).

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

71214750 is a wasteful number, since it uses less digits than its factorization.

71214750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 71214750 is about 8438.8832199527. The cubic root of 71214750 is about 414.4988385895.

Adding to 71214750 its reverse (5741217), we get a palindrome (76955967).

The spelling of 71214750 in words is "seventy-one million, two hundred fourteen thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 31 45 50 62 75 90 93 125 150 155 186 225 250 279 310 375 450 465 558 750 775 930 1021 1125 1395 1550 2042 2250 2325 2790 3063 3875 4650 5105 6126 6975 7750 9189 10210 11625 13950 15315 18378 23250 25525 30630 31651 34875 45945 51050 63302 69750 76575 91890 94953 127625 153150 158255 189906 229725 255250 284859 316510 382875 459450 474765 569718 765750 791275 949530 1148625 1424295 1582550 2297250 2373825 2848590 3956375 4747650 7121475 7912750 11869125 14242950 23738250 35607375 71214750