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76057917797 = 197386080801
BaseRepresentation
bin100011011010101100…
…1111011100101100101
321021022121101112211102
41012311121323211211
52221231311332142
654535053045445
75331533430401
oct1066531734545
9237277345742
1076057917797
112a28a791404
12128a7786885
1372315116b4
1439773c0101
151ea2389532
hex11b567b965

76057917797 has 4 divisors (see below), whose sum is σ = 76443998796. Its totient is φ = 75671836800.

The previous prime is 76057917781. The next prime is 76057917827. The reversal of 76057917797 is 79771975067.

It is a happy number.

It is a Cunningham number, because it is equal to 2757862+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79771975067 = 149535382383.

It can be written as a sum of positive squares in 2 ways, for example, as 74521356196 + 1536561601 = 272986^2 + 39199^2 .

It is a cyclic number.

It is not a de Polignac number, because 76057917797 - 24 = 76057917781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76057917197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193040204 + ... + 193040597.

It is an arithmetic number, because the mean of its divisors is an integer number (19110999699).

Almost surely, 276057917797 is an apocalyptic number.

It is an amenable number.

76057917797 is a deficient number, since it is larger than the sum of its proper divisors (386080999).

76057917797 is a wasteful number, since it uses less digits than its factorization.

76057917797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386080998.

The product of its (nonzero) digits is 40841010, while the sum is 65.

The spelling of 76057917797 in words is "seventy-six billion, fifty-seven million, nine hundred seventeen thousand, seven hundred ninety-seven".

Divisors: 1 197 386080801 76057917797