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71132160 = 2103511421
BaseRepresentation
bin1000011110101…
…10010000000000
311221211212222110
410033112100000
5121202212120
611020335320
71522420251
oct417262000
9157755873
1071132160
1137174710
121b9a4540
1311976c48
149638b28
1563a12e0
hex43d6400

71132160 has 176 divisors, whose sum is σ = 248784192. Its totient is φ = 17203200.

The previous prime is 71132119. The next prime is 71132177. The reversal of 71132160 is 6123117.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168750 + ... + 169170.

Almost surely, 271132160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71132160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124392096).

71132160 is an abundant number, since it is smaller than the sum of its proper divisors (177652032).

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

71132160 is a wasteful number, since it uses less digits than its factorization.

71132160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 71132160 is about 8433.9883803572. The cubic root of 71132160 is about 414.3385407978.

Adding to 71132160 its reverse (6123117), we get a palindrome (77255277).

It can be divided in two parts, 71 and 132160, that added together give a palindrome (132231).

The spelling of 71132160 in words is "seventy-one million, one hundred thirty-two thousand, one hundred sixty".