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80016452 = 2229689797
BaseRepresentation
bin1001100010011…
…11010001000100
312120120020221022
410301033101010
5130441011302
611535010312
71661062055
oct461172104
9176506838
1080016452
11411925aa
1222969998
1313767a19
14a8ac72c
1570588a2
hex4c4f444

80016452 has 12 divisors (see below), whose sum is σ = 144857580. Its totient is φ = 38628576.

The previous prime is 80016451. The next prime is 80016457. The reversal of 80016452 is 25461008.

It can be written as a sum of positive squares in 2 ways, for example, as 40653376 + 39363076 = 6376^2 + 6274^2 .

It is not an unprimeable number, because it can be changed into a prime (80016451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344783 + ... + 345014.

It is an arithmetic number, because the mean of its divisors is an integer number (12071465).

Almost surely, 280016452 is an apocalyptic number.

It is an amenable number.

80016452 is a deficient number, since it is larger than the sum of its proper divisors (64841128).

80016452 is a wasteful number, since it uses less digits than its factorization.

80016452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689830 (or 689828 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 80016452 is about 8945.1915574794. The cubic root of 80016452 is about 430.9164732814.

The spelling of 80016452 in words is "eighty million, sixteen thousand, four hundred fifty-two".

Divisors: 1 2 4 29 58 116 689797 1379594 2759188 20004113 40008226 80016452