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76521470741 = 2343113684713
BaseRepresentation
bin100011101000100001…
…0001111101100010101
321022111220122110220222
41013101002033230111
52223203444030431
655053052404125
75346162524612
oct1072102175425
9238456573828
1076521470741
112a4a8414611
12129b6a76645
1372a6575191
1439bcba9509
151ecce0357b
hex11d108fb15

76521470741 has 16 divisors (see below), whose sum is σ = 82428610176. Its totient is φ = 70859475456.

The previous prime is 76521470723. The next prime is 76521470743. The reversal of 76521470741 is 14707412567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76521470741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76521470692 and 76521470701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76521470743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230600 + ... + 454113.

It is an arithmetic number, because the mean of its divisors is an integer number (5151788136).

Almost surely, 276521470741 is an apocalyptic number.

It is an amenable number.

76521470741 is a deficient number, since it is larger than the sum of its proper divisors (5907139435).

76521470741 is a wasteful number, since it uses less digits than its factorization.

76521470741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684892.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 76521470741 in words is "seventy-six billion, five hundred twenty-one million, four hundred seventy thousand, seven hundred forty-one".

Divisors: 1 23 43 113 989 2599 4859 111757 684713 15748399 29442659 77372569 677181157 1779569087 3327020467 76521470741