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80224889 = 193415673
BaseRepresentation
bin1001100100000…
…10001001111001
312120221211212012
410302002021321
5131014144024
611543255305
71662620543
oct462021171
9176854765
1080224889
1141315168
1222a4a535
131380b864
14a924693
15709a50e
hex4c82279

80224889 has 4 divisors (see below), whose sum is σ = 80640756. Its totient is φ = 79809024.

The previous prime is 80224861. The next prime is 80224913. The reversal of 80224889 is 98842208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11002489 + 69222400 = 3317^2 + 8320^2 .

It is a cyclic number.

It is not a de Polignac number, because 80224889 - 28 = 80224633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80224829) 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, 207644 + ... + 208029.

It is an arithmetic number, because the mean of its divisors is an integer number (20160189).

Almost surely, 280224889 is an apocalyptic number.

It is an amenable number.

80224889 is a deficient number, since it is larger than the sum of its proper divisors (415867).

80224889 is a wasteful number, since it uses less digits than its factorization.

80224889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415866.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 80224889 is about 8956.8347645806. The cubic root of 80224889 is about 431.2903174796.

The spelling of 80224889 in words is "eighty million, two hundred twenty-four thousand, eight hundred eighty-nine".

Divisors: 1 193 415673 80224889