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79669296697 = 145915460167
BaseRepresentation
bin100101000110010101…
…0001111111000111001
321121122021211121100111
41022030222033320321
52301130314443242
6100333301304321
75520164564014
oct1121452177071
9247567747314
1079669296697
1130873271871
12135351050a1
137688776ba3
143bdac9237b
152114447817
hex128ca8fe39

79669296697 has 4 divisors (see below), whose sum is σ = 79674771456. Its totient is φ = 79663821940.

The previous prime is 79669296671. The next prime is 79669296743.

79669296697 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79669296697 - 215 = 79669263929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79669296647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2715493 + ... + 2744674.

It is an arithmetic number, because the mean of its divisors is an integer number (19918692864).

Almost surely, 279669296697 is an apocalyptic number.

It is an amenable number.

79669296697 is a deficient number, since it is larger than the sum of its proper divisors (5474759).

79669296697 is a wasteful number, since it uses less digits than its factorization.

79669296697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474758.

The product of its digits is 833299488, while the sum is 76.

The spelling of 79669296697 in words is "seventy-nine billion, six hundred sixty-nine million, two hundred ninety-six thousand, six hundred ninety-seven".

Divisors: 1 14591 5460167 79669296697