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80538097849 = 119161799219
BaseRepresentation
bin100101100000001110…
…0011101100010111001
321200212211122021110221
41023000130131202321
52304420223112344
6100555414540041
75550544351666
oct1130034354271
9250784567427
1080538097849
1131179724a50
1213738067621
137796768a01
143c8040aa6d
152165860184
hex12c071d8b9

80538097849 has 8 divisors (see below), whose sum is σ = 87869443680. Its totient is φ = 73208368800.

The previous prime is 80538097837. The next prime is 80538097933. The reversal of 80538097849 is 94879083508.

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 80538097849 - 29 = 80538097337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80538097819) 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 7 ways as a sum of consecutive naturals, for example, 298839 + ... + 500380.

It is an arithmetic number, because the mean of its divisors is an integer number (10983680460).

Almost surely, 280538097849 is an apocalyptic number.

It is an amenable number.

80538097849 is a deficient number, since it is larger than the sum of its proper divisors (7331345831).

80538097849 is a wasteful number, since it uses less digits than its factorization.

80538097849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808391.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 80538097849 in words is "eighty billion, five hundred thirty-eight million, ninety-seven thousand, eight hundred forty-nine".

Divisors: 1 11 9161 100771 799219 8791409 7321645259 80538097849