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71206716 = 22372929231
BaseRepresentation
bin1000011111010…
…00011100111100
311221222200020210
410033220130330
5121212103331
611022112420
71523150520
oct417503474
9157880223
1071206716
1137215729
121ba1b710
13119a1b69
149657d80
1563b8446
hex43e873c

71206716 has 48 divisors (see below), whose sum is σ = 196439040. Its totient is φ = 19642560.

The previous prime is 71206711. The next prime is 71206831. The reversal of 71206716 is 61760217.

It is a happy number.

It is a super-3 number, since 3×712067163 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71206711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12180 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (4092480).

Almost surely, 271206716 is an apocalyptic number.

It is an amenable number.

71206716 is an abundant number, since it is smaller than the sum of its proper divisors (125232324).

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

71206716 is a wasteful number, since it uses less digits than its factorization.

71206716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29274 (or 29272 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71206716 is about 8438.4071956738. The cubic root of 71206716 is about 414.4832509530.

The spelling of 71206716 in words is "seventy-one million, two hundred six thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 58 84 87 116 174 203 348 406 609 812 1218 2436 29231 58462 87693 116924 175386 204617 350772 409234 613851 818468 847699 1227702 1695398 2455404 2543097 3390796 5086194 5933893 10172388 11867786 17801679 23735572 35603358 71206716