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80017120 = 255500107
BaseRepresentation
bin1001100010011…
…11011011100000
312120120021212001
410301033123200
5130441021440
611535013344
71661064031
oct461173340
9176507761
1080017120
1141193057
122296a254
1313768111
14a8aca88
157058b9a
hex4c4f6e0

80017120 has 24 divisors (see below), whose sum is σ = 189040824. Its totient is φ = 32006784.

The previous prime is 80017103. The next prime is 80017129. The reversal of 80017120 is 2171008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80017129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249894 + ... + 250213.

It is an arithmetic number, because the mean of its divisors is an integer number (7876701).

Almost surely, 280017120 is an apocalyptic number.

80017120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80017120 is an abundant number, since it is smaller than the sum of its proper divisors (109023704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80017120 is a wasteful number, since it uses less digits than its factorization.

80017120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500122 (or 500114 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 80017120 is about 8945.2288958975. The cubic root of 80017120 is about 430.9176724157.

Adding to 80017120 its reverse (2171008), we get a palindrome (82188128).

The spelling of 80017120 in words is "eighty million, seventeen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 500107 1000214 2000428 2500535 4000856 5001070 8001712 10002140 16003424 20004280 40008560 80017120