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75856176401 = 1972689143197
BaseRepresentation
bin100011010100101100…
…0010110010100010001
321020210112210000122212
41012221120112110101
52220323140121101
654503045041505
75323533601145
oct1065130262421
9236715700585
1075856176401
112a19691a085
12128500b6295
1371cb7978a5
1439586a7225
151e8e7d91bb
hex11a9616511

75856176401 has 8 divisors (see below), whose sum is σ = 76270118760. Its totient is φ = 75442526208.

The previous prime is 75856176397. The next prime is 75856176419. The reversal of 75856176401 is 10467165857.

It is a happy number.

It is a Cunningham number, because it is equal to 2754202+1.

It can be written as a sum of positive squares in 4 ways, for example, as 178917376 + 75677259025 = 13376^2 + 275095^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75856176401 - 22 = 75856176397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75856176401.

It is not an unprimeable number, because it can be changed into a prime (75856176481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458135 + ... + 601331.

It is an arithmetic number, because the mean of its divisors is an integer number (9533764845).

Almost surely, 275856176401 is an apocalyptic number.

It is an amenable number.

75856176401 is a deficient number, since it is larger than the sum of its proper divisors (413942359).

75856176401 is a wasteful number, since it uses less digits than its factorization.

75856176401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146083.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 75856176401 in words is "seventy-five billion, eight hundred fifty-six million, one hundred seventy-six thousand, four hundred one".

Divisors: 1 197 2689 143197 529733 28209809 385056733 75856176401