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80339220 = 2232513219139
BaseRepresentation
bin1001100100111…
…10000100010100
312121011122200200
410302132010110
5131031323340
611545540500
71663605063
oct462360424
9177148620
1080339220
1141393055
1222aa4730
131384b900
14a9541da
1570be330
hex4c9e114

80339220 has 216 divisors, whose sum is σ = 279770400. Its totient is φ = 18600192.

The previous prime is 80339209. The next prime is 80339221. The reversal of 80339220 is 2293308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80339221) 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 71 ways as a sum of consecutive naturals, for example, 577911 + ... + 578049.

Almost surely, 280339220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80339220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139885200).

80339220 is an abundant number, since it is smaller than the sum of its proper divisors (199431180).

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

80339220 is a wasteful number, since it uses less digits than its factorization.

80339220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 80339220 is about 8963.2148250502. The cubic root of 80339220 is about 431.4951020051.

The spelling of 80339220 in words is "eighty million, three hundred thirty-nine thousand, two hundred twenty".