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71041912 = 23171921447
BaseRepresentation
bin1000011110000…
…00001101111000
311221200022011221
410033000031320
5121141320122
611014401424
71521563164
oct417001570
9157608157
1071041912
1137112927
121b960274
1311944b46
149613ca4
1563846c7
hex43c0378

71041912 has 48 divisors (see below), whose sum is σ = 148955760. Its totient is φ = 31650048.

The previous prime is 71041907. The next prime is 71041939. The reversal of 71041912 is 21914017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48373 + ... + 49819.

It is an arithmetic number, because the mean of its divisors is an integer number (3103245).

Almost surely, 271041912 is an apocalyptic number.

It is an amenable number.

71041912 is an abundant number, since it is smaller than the sum of its proper divisors (77913848).

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

71041912 is a wasteful number, since it uses less digits than its factorization.

71041912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 71041912 is about 8428.6364258995. The cubic root of 71041912 is about 414.1632377664.

Adding to 71041912 its reverse (21914017), we get a palindrome (92955929).

The spelling of 71041912 in words is "seventy-one million, forty-one thousand, nine hundred twelve".

Divisors: 1 2 4 8 17 19 34 38 68 76 136 152 323 361 646 722 1292 1444 1447 2584 2888 2894 5788 6137 11576 12274 24548 24599 27493 49096 49198 54986 98396 109972 196792 219944 467381 522367 934762 1044734 1869524 2089468 3739048 4178936 8880239 17760478 35520956 71041912