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71470500540 = 223541131227977
BaseRepresentation
bin100001010001111111…
…0010100101010111100
320211110220100121101120
41002203332110222330
52132332422004130
652455540510540
75110051142145
oct1024376245274
9224426317346
1071470500540
112834626397a
1211a273ab450
13697ccab70a
14366003aacc
151cd477e910
hex10a3f94abc

71470500540 has 192 divisors, whose sum is σ = 207685513728. Its totient is φ = 18351923200.

The previous prime is 71470500511. The next prime is 71470500571. The reversal of 71470500540 is 4500507417.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73152532 + ... + 73153508.

It is an arithmetic number, because the mean of its divisors is an integer number (1081695384).

Almost surely, 271470500540 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 71470500540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103842756864).

71470500540 is an abundant number, since it is smaller than the sum of its proper divisors (136215013188).

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

71470500540 is a wasteful number, since it uses less digits than its factorization.

71470500540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The spelling of 71470500540 in words is "seventy-one billion, four hundred seventy million, five hundred thousand, five hundred forty".