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80086445 = 553302213
BaseRepresentation
bin1001100011000…
…00010110101101
312120200210221122
410301200112231
5131000231240
611540310325
71661503115
oct461402655
9176623848
1080086445
114123014a
12229a23a5
131379083a
14a8ca045
15706e4b5
hex4c605ad

80086445 has 8 divisors (see below), whose sum is σ = 97917336. Its totient is φ = 62860096.

The previous prime is 80086441. The next prime is 80086459. The reversal of 80086445 is 54468008.

It can be written as a sum of positive squares in 4 ways, for example, as 27175369 + 52911076 = 5213^2 + 7274^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80086445 - 22 = 80086441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80086441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150842 + ... + 151371.

It is an arithmetic number, because the mean of its divisors is an integer number (12239667).

Almost surely, 280086445 is an apocalyptic number.

It is an amenable number.

80086445 is a deficient number, since it is larger than the sum of its proper divisors (17830891).

80086445 is a wasteful number, since it uses less digits than its factorization.

80086445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302271.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 80086445 is about 8949.1030276782. The cubic root of 80086445 is about 431.0420822278.

The spelling of 80086445 in words is "eighty million, eighty-six thousand, four hundred forty-five".

Divisors: 1 5 53 265 302213 1511065 16017289 80086445