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80043995 = 516008799
BaseRepresentation
bin1001100010101…
…01111111011011
312120121122201102
410301111333123
5130442401440
611535342015
71661235263
oct461257733
9176548642
1080043995
1141201269
122298190b
1313777415
14a8b87a3
157061b15
hex4c55fdb

80043995 has 4 divisors (see below), whose sum is σ = 96052800. Its totient is φ = 64035192.

The previous prime is 80043991. The next prime is 80044001. The reversal of 80043995 is 59934008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80043995 - 22 = 80043991 is a prime.

It is a super-2 number, since 2×800439952 = 12814082271120050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80043991) 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 3 ways as a sum of consecutive naturals, for example, 8004395 + ... + 8004404.

It is an arithmetic number, because the mean of its divisors is an integer number (24013200).

Almost surely, 280043995 is an apocalyptic number.

80043995 is a deficient number, since it is larger than the sum of its proper divisors (16008805).

80043995 is a wasteful number, since it uses less digits than its factorization.

80043995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16008804.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 80043995 is about 8946.7309672304. The cubic root of 80043995 is about 430.9659104933.

The spelling of 80043995 in words is "eighty million, forty-three thousand, nine hundred ninety-five".

Divisors: 1 5 16008799 80043995