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80001643795 = 567238810877
BaseRepresentation
bin100101010000001111…
…0000011010100010011
321122111110012120212021
41022200132003110103
52302320410100140
6100430252512311
75531341516003
oct1124036032423
9248443176767
1080001643795
1130a2392a097
121360847b697
13770c58c088
143c2d086003
1521336e5b4a
hex12a0783513

80001643795 has 8 divisors (see below), whose sum is σ = 97434838224. Its totient is φ = 63046071264.

The previous prime is 80001643763. The next prime is 80001643847. The reversal of 80001643795 is 59734610008.

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 80001643795 - 25 = 80001643763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119405104 + ... + 119405773.

It is an arithmetic number, because the mean of its divisors is an integer number (12179354778).

Almost surely, 280001643795 is an apocalyptic number.

80001643795 is a deficient number, since it is larger than the sum of its proper divisors (17433194429).

80001643795 is a wasteful number, since it uses less digits than its factorization.

80001643795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238810949.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 80001643795 in words is "eighty billion, one million, six hundred forty-three thousand, seven hundred ninety-five".

Divisors: 1 5 67 335 238810877 1194054385 16000328759 80001643795