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71008704 = 26331329109
BaseRepresentation
bin1000011101110…
…00000111000000
311221121121122000
410032320013000
5121134234304
611013544000
71521364314
oct416700700
9157547560
1071008704
113709a988
121b945000
13119329b0
149605b44
156379939
hex43b81c0

71008704 has 224 divisors, whose sum is σ = 234696000. Its totient is φ = 20901888.

The previous prime is 71008703. The next prime is 71008709. The reversal of 71008704 is 40780017.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71008703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651402 + ... + 651510.

It is an arithmetic number, because the mean of its divisors is an integer number (1047750).

Almost surely, 271008704 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 71008704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117348000).

71008704 is an abundant number, since it is smaller than the sum of its proper divisors (163687296).

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

71008704 is a wasteful number, since it uses less digits than its factorization.

71008704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 71008704 is about 8426.6662447257. Note that the first 3 decimals coincide. The cubic root of 71008704 is about 414.0986952263.

The spelling of 71008704 in words is "seventy-one million, eight thousand, seven hundred four".