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80801340815 = 5133140099921
BaseRepresentation
bin100101101000000100…
…0101001110110001111
321201120011222101221102
41023100020221312033
52310440120401230
6101041501053315
75560222031126
oct1132010516617
9251504871842
1080801340815
11312a4283318
12137b025723b
137809167090
143ca7372abd
15217da0d045
hex12d0229d8f

80801340815 has 16 divisors (see below), whose sum is σ = 107788590336. Its totient is φ = 57743884800.

The previous prime is 80801340797. The next prime is 80801340827. The reversal of 80801340815 is 51804310808.

It is not a de Polignac number, because 80801340815 - 26 = 80801340751 is a prime.

It is a super-3 number, since 3×808013408153 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20047946 + ... + 20051975.

It is an arithmetic number, because the mean of its divisors is an integer number (6736786896).

Almost surely, 280801340815 is an apocalyptic number.

80801340815 is a deficient number, since it is larger than the sum of its proper divisors (26987249521).

80801340815 is a wasteful number, since it uses less digits than its factorization.

80801340815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40099970.

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 80801340815 in words is "eighty billion, eight hundred one million, three hundred forty thousand, eight hundred fifteen".

Divisors: 1 5 13 31 65 155 403 2015 40099921 200499605 521298973 1243097551 2606494865 6215487755 16160268163 80801340815