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71434306 = 21711318593
BaseRepresentation
bin1000100001000…
…00000001000010
311222102020110001
410100200001002
5121241344211
611031030214
71525116166
oct420400102
9158366401
1071434306
1137360719
121bb0b36a
1311a51628
1496b6ca6
156410ac1
hex4420042

71434306 has 16 divisors (see below), whose sum is σ = 114464664. Its totient is φ = 33316864.

The previous prime is 71434283. The next prime is 71434327. The reversal of 71434306 is 60343417.

It can be written as a sum of positive squares in 4 ways, for example, as 53158681 + 18275625 = 7291^2 + 4275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5455 + ... + 13138.

Almost surely, 271434306 is an apocalyptic number.

71434306 is a deficient number, since it is larger than the sum of its proper divisors (43030358).

71434306 is a wasteful number, since it uses less digits than its factorization.

71434306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18725.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 71434306 is about 8451.8818022970. The cubic root of 71434306 is about 414.9243700182.

It can be divided in two parts, 7143 and 4306, that added together give a square (11449 = 1072).

The spelling of 71434306 in words is "seventy-one million, four hundred thirty-four thousand, three hundred six".

Divisors: 1 2 17 34 113 226 1921 3842 18593 37186 316081 632162 2101009 4202018 35717153 71434306