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71034260 = 225112149197
BaseRepresentation
bin1000011101111…
…10010110010100
311221122220200112
410032332112110
5121141044020
611014302152
71521531653
oct416762624
9157586615
1071034260
1137108100
121b957958
131194150b
14961119a
1563822c5
hex43be594

71034260 has 72 divisors (see below), whose sum is σ = 165904200. Its totient is φ = 25527040.

The previous prime is 71034251. The next prime is 71034277. The reversal of 71034260 is 6243017.

It can be written as a sum of positive squares in 4 ways, for example, as 12082576 + 58951684 = 3476^2 + 7678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360482 + ... + 360678.

It is an arithmetic number, because the mean of its divisors is an integer number (2304225).

Almost surely, 271034260 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 71034260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82952100).

71034260 is an abundant number, since it is smaller than the sum of its proper divisors (94869940).

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

71034260 is a wasteful number, since it uses less digits than its factorization.

71034260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 71034260 is about 8428.1824849727. The cubic root of 71034260 is about 414.1483672446.

Adding to 71034260 its reverse (6243017), we get a palindrome (77277277).

The spelling of 71034260 in words is "seventy-one million, thirty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 149 197 220 242 298 394 484 596 605 745 788 985 1210 1490 1639 1970 2167 2420 2980 3278 3940 4334 6556 8195 8668 10835 16390 18029 21670 23837 29353 32780 36058 43340 47674 58706 72116 90145 95348 117412 119185 146765 180290 238370 293530 322883 360580 476740 587060 645766 1291532 1614415 3228830 3551713 6457660 7103426 14206852 17758565 35517130 71034260