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71344260 = 223351310163
BaseRepresentation
bin1000100000010…
…10000010000100
311222020122221000
410100022002010
5121231004020
611025053300
71524262521
oct420120204
9158218830
1071344260
11372a9aa9
121ba87230
1311a1c650
149692148
1563e4090
hex440a084

71344260 has 96 divisors (see below), whose sum is σ = 239057280. Its totient is φ = 17559936.

The previous prime is 71344253. The next prime is 71344277. The reversal of 71344260 is 6244317.

71344260 = T495 + T496 + ... + T818.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1939 + ... + 12101.

It is an arithmetic number, because the mean of its divisors is an integer number (2490180).

Almost surely, 271344260 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 71344260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119528640).

71344260 is an abundant number, since it is smaller than the sum of its proper divisors (167713020).

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

71344260 is a wasteful number, since it uses less digits than its factorization.

71344260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194 (or 10186 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 71344260 is about 8446.5531431466. The cubic root of 71344260 is about 414.7499534023.

Adding to 71344260 its reverse (6244317), we get a palindrome (77588577).

The spelling of 71344260 in words is "seventy-one million, three hundred forty-four thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 10163 20326 30489 40652 50815 60978 91467 101630 121956 132119 152445 182934 203260 264238 274401 304890 365868 396357 457335 528476 548802 609780 660595 792714 914670 1097604 1189071 1321190 1372005 1585428 1829340 1981785 2378142 2642380 2744010 3567213 3963570 4756284 5488020 5945355 7134426 7927140 11890710 14268852 17836065 23781420 35672130 71344260