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79404506753 = 1121350479661
BaseRepresentation
bin100100111110011100…
…0001001111010000001
321120221211120212211112
41021330320021322001
52300110023204003
6100251122053105
75510501112455
oct1117470117201
9246854525745
1079404506753
1130747857200
12134804aa195
137645956650
143bb3a46665
1520eb0913d8
hex127ce09e81

79404506753 has 12 divisors (see below), whose sum is σ = 93993130644. Its totient is φ = 66633151200.

The previous prime is 79404506749. The next prime is 79404506761. The reversal of 79404506753 is 35760540497.

It can be written as a sum of positive squares in 2 ways, for example, as 4280823184 + 75123683569 = 65428^2 + 274087^2 .

It is not a de Polignac number, because 79404506753 - 22 = 79404506749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79404506653) 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 11 ways as a sum of consecutive naturals, for example, 25238258 + ... + 25241403.

It is an arithmetic number, because the mean of its divisors is an integer number (7832760887).

Almost surely, 279404506753 is an apocalyptic number.

It is an amenable number.

79404506753 is a deficient number, since it is larger than the sum of its proper divisors (14588623891).

79404506753 is a wasteful number, since it uses less digits than its factorization.

79404506753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50479696 (or 50479685 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 79404506753 in words is "seventy-nine billion, four hundred four million, five hundred six thousand, seven hundred fifty-three".

Divisors: 1 11 13 121 143 1573 50479661 555276271 656235593 6108038981 7218591523 79404506753