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71055716 = 22171497013
BaseRepresentation
bin1000011110000…
…11100101100100
311221201000010012
410033003211210
5121142240331
611014545352
71521651344
oct417034544
9157630105
1071055716
1137122236
121b968258
131194b204
149618d24
15638882b
hex43c3964

71055716 has 24 divisors (see below), whose sum is σ = 132564600. Its totient is φ = 33208832.

The previous prime is 71055707. The next prime is 71055757. The reversal of 71055716 is 61755017.

It can be written as a sum of positive squares in 4 ways, for example, as 16974400 + 54081316 = 4120^2 + 7354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6626 + ... + 13638.

It is an arithmetic number, because the mean of its divisors is an integer number (5523525).

Almost surely, 271055716 is an apocalyptic number.

It is an amenable number.

71055716 is a deficient number, since it is larger than the sum of its proper divisors (61508884).

71055716 is a wasteful number, since it uses less digits than its factorization.

71055716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183 (or 7181 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 71055716 is about 8429.4552611660. The cubic root of 71055716 is about 414.1900610829.

It can be divided in two parts, 7105 and 5716, that added together give a palindrome (12821).

The spelling of 71055716 in words is "seventy-one million, fifty-five thousand, seven hundred sixteen".

Divisors: 1 2 4 17 34 68 149 298 596 2533 5066 7013 10132 14026 28052 119221 238442 476884 1044937 2089874 4179748 17763929 35527858 71055716