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71344716 = 22317349729
BaseRepresentation
bin1000100000010…
…10001001001100
311222020200112220
410100022021030
5121231012331
611025055340
71524264042
oct420121114
9158220486
1071344716
11372aa383
121ba87550
1311a1c911
149692392
1563e4296
hex440a24c

71344716 has 24 divisors (see below), whose sum is σ = 176263920. Its totient is φ = 22382592.

The previous prime is 71344709. The next prime is 71344739. The reversal of 71344716 is 61744317.

It is a super-2 number, since 2×713447162 = 10180137002241312, which contains 22 as substring.

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, 174661 + ... + 175068.

It is an arithmetic number, because the mean of its divisors is an integer number (7344330).

Almost surely, 271344716 is an apocalyptic number.

It is an amenable number.

71344716 is an abundant number, since it is smaller than the sum of its proper divisors (104919204).

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

71344716 is a wasteful number, since it uses less digits than its factorization.

71344716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349753 (or 349751 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 71344716 is about 8446.5801363629. The cubic root of 71344716 is about 414.7508370313.

The spelling of 71344716 in words is "seventy-one million, three hundred forty-four thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 349729 699458 1049187 1398916 2098374 4196748 5945393 11890786 17836179 23781572 35672358 71344716