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71736882940 = 22526991328953
BaseRepresentation
bin100001011001111011…
…0011111011011111100
320212011110121020100101
41002303312133123330
52133404120223230
652542214210444
75116464305212
oct1026366373374
9225143536311
1071736882940
1128472666a18
1211aa0653a24
1369c3238a38
14368757ccb2
151cecd4caca
hex10b3d9f6fc

71736882940 has 24 divisors (see below), whose sum is σ = 150703383600. Its totient is φ = 28684099968.

The previous prime is 71736882887. The next prime is 71736882941. The reversal of 71736882940 is 4928863717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71736882941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610497 + ... + 718456.

It is an arithmetic number, because the mean of its divisors is an integer number (6279307650).

Almost surely, 271736882940 is an apocalyptic number.

It is an amenable number.

71736882940 is an abundant number, since it is smaller than the sum of its proper divisors (78966500660).

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

71736882940 is a wasteful number, since it uses less digits than its factorization.

71736882940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331661 (or 1331659 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 71736882940 in words is "seventy-one billion, seven hundred thirty-six million, eight hundred eighty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 2699 5398 10796 13495 26990 53980 1328953 2657906 5315812 6644765 13289530 26579060 3586844147 7173688294 14347376588 17934220735 35868441470 71736882940