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71480866 = 2223293547
BaseRepresentation
bin1000100001010…
…11011000100010
311222111121022111
410100223120202
5121244341431
611032025534
71525402012
oct420533042
9158447274
1071480866
11373926a6
121bb322aa
1311a69892
1496c9c42
15641e7b1
hex442b622

71480866 has 16 divisors (see below), whose sum is σ = 108267264. Its totient is φ = 35393904.

The previous prime is 71480861. The next prime is 71480881. The reversal of 71480866 is 66808417.

It is not an unprimeable number, because it can be changed into a prime (71480861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130405 + ... + 130951.

It is an arithmetic number, because the mean of its divisors is an integer number (6766704).

Almost surely, 271480866 is an apocalyptic number.

71480866 is a deficient number, since it is larger than the sum of its proper divisors (36786398).

71480866 is a wasteful number, since it uses less digits than its factorization.

71480866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 71480866 is about 8454.6357698011. The cubic root of 71480866 is about 415.0144979693.

The spelling of 71480866 in words is "seventy-one million, four hundred eighty thousand, eight hundred sixty-six".

Divisors: 1 2 223 293 446 547 586 1094 65339 121981 130678 160271 243962 320542 35740433 71480866