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71060816 = 2417793307
BaseRepresentation
bin1000011110001…
…00110101010000
311221201021010002
410033010311100
5121142421231
611015025132
71522002251
oct417046520
9157637102
1071060816
1137126052
121b96b1a8
1311950628
14961ab28
15638a0cb
hex43c4d50

71060816 has 40 divisors (see below), whose sum is σ = 147669120. Its totient is φ = 33007104.

The previous prime is 71060813. The next prime is 71060827. The reversal of 71060816 is 61806017.

71060816 is nontrivially palindromic in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71060813) 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 7 ways as a sum of consecutive naturals, for example, 19835 + ... + 23141.

It is an arithmetic number, because the mean of its divisors is an integer number (3691728).

Almost surely, 271060816 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 71060816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73834560).

71060816 is an abundant number, since it is smaller than the sum of its proper divisors (76608304).

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

71060816 is a wasteful number, since it uses less digits than its factorization.

71060816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 71060816 is about 8429.7577663893. The cubic root of 71060816 is about 414.1999702964.

The spelling of 71060816 in words is "seventy-one million, sixty thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 17 34 68 79 136 158 272 316 632 1264 1343 2686 3307 5372 6614 10744 13228 21488 26456 52912 56219 112438 224876 261253 449752 522506 899504 1045012 2090024 4180048 4441301 8882602 17765204 35530408 71060816