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76428353808 = 243231371393329
BaseRepresentation
bin100011100101101111…
…1000010000100010000
321022021102102122111200
41013023133002010100
52223011124310213
655035524511200
75343652200642
oct1071337020420
9238242378450
1076428353808
112a45a8a4474
121298b84b500
1372901a15c1
1439b068a892
151ec4b5d273
hex11cb7c2110

76428353808 has 240 divisors, whose sum is σ = 228460377600. Its totient is φ = 23808245760.

The previous prime is 76428353791. The next prime is 76428353809. The reversal of 76428353808 is 80835382467.

It is not an unprimeable number, because it can be changed into a prime (76428353809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22956688 + ... + 22960016.

It is an arithmetic number, because the mean of its divisors is an integer number (951918240).

Almost surely, 276428353808 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 76428353808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114230188800).

76428353808 is an abundant number, since it is smaller than the sum of its proper divisors (152032023792).

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

76428353808 is a wasteful number, since it uses less digits than its factorization.

76428353808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 76428353808 in words is "seventy-six billion, four hundred twenty-eight million, three hundred fifty-three thousand, eight hundred eight".