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80640110 = 258064011
BaseRepresentation
bin1001100111001…
…11100001101110
312121201221102202
410303213201232
5131120440420
612000221502
71666300235
oct463474156
9177657382
1080640110
1141579121
122300a892
1313925855
14a9d1b1c
15712d575
hex4ce786e

80640110 has 8 divisors (see below), whose sum is σ = 145152216. Its totient is φ = 32256040.

The previous prime is 80640103. The next prime is 80640113. The reversal of 80640110 is 1104608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80640113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031996 + ... + 4032015.

It is an arithmetic number, because the mean of its divisors is an integer number (18144027).

Almost surely, 280640110 is an apocalyptic number.

80640110 is a deficient number, since it is larger than the sum of its proper divisors (64512106).

80640110 is a wasteful number, since it uses less digits than its factorization.

80640110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064018.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 80640110 is about 8979.9838529922. The cubic root of 80640110 is about 432.0331157456.

Adding to 80640110 its reverse (1104608), we get a palindrome (81744718).

The spelling of 80640110 in words is "eighty million, six hundred forty thousand, one hundred ten".

Divisors: 1 2 5 10 8064011 16128022 40320055 80640110