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71117024 = 2511218367
BaseRepresentation
bin1000011110100…
…10100011100000
311221211010012212
410033102203200
5121201221044
611020141252
71522325156
oct417224340
9157733185
1071117024
1137164300
121b997828
13119700a4
1496333d6
15639ba9e
hex43d28e0

71117024 has 36 divisors (see below), whose sum is σ = 153905472. Its totient is φ = 32324160.

The previous prime is 71117023. The next prime is 71117089. The reversal of 71117024 is 42071117.

It is a super-2 number, since 2×711170242 = 10115262205233152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71117023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5312 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (4275152).

Almost surely, 271117024 is an apocalyptic number.

It is an amenable number.

71117024 is an abundant number, since it is smaller than the sum of its proper divisors (82788448).

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

71117024 is a wasteful number, since it uses less digits than its factorization.

71117024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18399 (or 18380 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 71117024 is about 8433.0910110113. The cubic root of 71117024 is about 414.3091500926.

The spelling of 71117024 in words is "seventy-one million, one hundred seventeen thousand, twenty-four".

Divisors: 1 2 4 8 11 16 22 32 44 88 121 176 242 352 484 968 1936 3872 18367 36734 73468 146936 202037 293872 404074 587744 808148 1616296 2222407 3232592 4444814 6465184 8889628 17779256 35558512 71117024