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80053065 = 3253974481
BaseRepresentation
bin1001100010110…
…00001101001001
312120122010011100
410301120031021
5130443144230
611535452013
71661303601
oct461301511
9176563140
1080053065
1141208064
1222987009
131377b5a1
14a8bbc01
157064660
hex4c58349

80053065 has 24 divisors (see below), whose sum is σ = 139139208. Its totient is φ = 42577920.

The previous prime is 80053063. The next prime is 80053069. The reversal of 80053065 is 56035008.

It can be written as a sum of positive squares in 4 ways, for example, as 22581504 + 57471561 = 4752^2 + 7581^2 .

It is not a de Polignac number, because 80053065 - 21 = 80053063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80053063) 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 23 ways as a sum of consecutive naturals, for example, 15625 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (5797467).

Almost surely, 280053065 is an apocalyptic number.

It is an amenable number.

80053065 is a deficient number, since it is larger than the sum of its proper divisors (59086143).

80053065 is a wasteful number, since it uses less digits than its factorization.

80053065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889 (or 4886 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 80053065 is about 8947.2378419264. The cubic root of 80053065 is about 430.9821878467.

The spelling of 80053065 in words is "eighty million, fifty-three thousand, sixty-five".

Divisors: 1 3 5 9 15 45 397 1191 1985 3573 4481 5955 13443 17865 22405 40329 67215 201645 1778957 5336871 8894785 16010613 26684355 80053065