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71241360 = 24351012939
BaseRepresentation
bin1000011111100…
…00111010010000
311222001102202220
410033300322100
5121214210420
611022541040
71523353521
oct417607220
9158042686
1071241360
1137239763
121ba37780
13119b4868
149666848
1563c3840
hex43f0e90

71241360 has 80 divisors (see below), whose sum is σ = 223110720. Its totient is φ = 18803200.

The previous prime is 71241343. The next prime is 71241361. The reversal of 71241360 is 6314217.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 71241360.

It is not an unprimeable number, because it can be changed into a prime (71241361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22771 + ... + 25709.

It is an arithmetic number, because the mean of its divisors is an integer number (2788884).

Almost surely, 271241360 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 71241360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111555360).

71241360 is an abundant number, since it is smaller than the sum of its proper divisors (151869360).

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

71241360 is a wasteful number, since it uses less digits than its factorization.

71241360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3050 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 71241360 is about 8440.4597031204. The cubic root of 71241360 is about 414.5504591718.

Adding to 71241360 its reverse (6314217), we get a palindrome (77555577).

The spelling of 71241360 in words is "seventy-one million, two hundred forty-one thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 101 120 202 240 303 404 505 606 808 1010 1212 1515 1616 2020 2424 2939 3030 4040 4848 5878 6060 8080 8817 11756 12120 14695 17634 23512 24240 29390 35268 44085 47024 58780 70536 88170 117560 141072 176340 235120 296839 352680 593678 705360 890517 1187356 1484195 1781034 2374712 2968390 3562068 4452585 4749424 5936780 7124136 8905170 11873560 14248272 17810340 23747120 35620680 71241360