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80000049 = 3231159421
BaseRepresentation
bin1001100010010…
…11010000110001
312120112102102210
410301023100301
5130440000144
611534402333
71660663203
oct461132061
9176472383
1080000049
1141181248
12229603a9
131376040c
14a8a6773
157053ab9
hex4c4b431

80000049 has 8 divisors (see below), whose sum is σ = 111304512. Its totient is φ = 51014480.

The previous prime is 80000027. The next prime is 80000059. The reversal of 80000049 is 94000008.

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 80000049 - 29 = 79999537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80000059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579642 + ... + 579779.

It is an arithmetic number, because the mean of its divisors is an integer number (13913064).

Almost surely, 280000049 is an apocalyptic number.

It is an amenable number.

80000049 is a deficient number, since it is larger than the sum of its proper divisors (31304463).

80000049 is a wasteful number, since it uses less digits than its factorization.

80000049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159447.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 80000049 is about 8944.2746491820. The cubic root of 80000049 is about 430.8870259791.

The spelling of 80000049 in words is "eighty million, forty-nine", and thus it is an aban number and an uban number.

Divisors: 1 3 23 69 1159421 3478263 26666683 80000049