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71480718 = 234463953
BaseRepresentation
bin1000100001010…
…11010110001110
311222111121010000
410100223112032
5121244340333
611032025130
71525401411
oct420532616
9158447100
1071480718
1137392581
121bb321a6
1311a697aa
1496c9b78
15641e713
hex442b58e

71480718 has 40 divisors (see below), whose sum is σ = 160684128. Its totient is φ = 23750496.

The previous prime is 71480713. The next prime is 71480719. The reversal of 71480718 is 81708417.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480713) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74530 + ... + 75482.

Almost surely, 271480718 is an apocalyptic number.

71480718 is an abundant number, since it is smaller than the sum of its proper divisors (89203410).

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

71480718 is a wasteful number, since it uses less digits than its factorization.

71480718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 71480718 is about 8454.6270172019. The cubic root of 71480718 is about 415.0142115422.

The spelling of 71480718 in words is "seventy-one million, four hundred eighty thousand, seven hundred eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 463 926 953 1389 1906 2778 2859 4167 5718 8334 8577 12501 17154 25002 25731 37503 51462 75006 77193 154386 441239 882478 1323717 2647434 3971151 7942302 11913453 23826906 35740359 71480718