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71333087 = 7194312473
BaseRepresentation
bin1000100000001…
…11010011011111
311222020002121012
410100013103133
5121230124322
611024525435
71524215120
oct420072337
9158202535
1071333087
11372a1671
121ba8087b
1311a17537
14968c047
1563e0ae2
hex44074df

71333087 has 16 divisors (see below), whose sum is σ = 87816960. Its totient is φ = 56572992.

The previous prime is 71333081. The next prime is 71333089. The reversal of 71333087 is 78033317.

It is a happy number.

It is not a de Polignac number, because 71333087 - 214 = 71316703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71333081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518 + ... + 11955.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 271333087 is an apocalyptic number.

71333087 is a deficient number, since it is larger than the sum of its proper divisors (16483873).

71333087 is a wasteful number, since it uses less digits than its factorization.

71333087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 71333087 is about 8445.8917231989. The cubic root of 71333087 is about 414.7283013770.

The spelling of 71333087 in words is "seventy-one million, three hundred thirty-three thousand, eighty-seven".

Divisors: 1 7 19 43 133 301 817 5719 12473 87311 236987 536339 1658909 3754373 10190441 71333087