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80338966 = 240169483
BaseRepresentation
bin1001100100111…
…10000000010110
312121011122100021
410302132000112
5131031321331
611545535354
71663604251
oct462360026
9177148307
1080338966
1141392944
1222aa455a
131384b766
14a954098
1570be211
hex4c9e016

80338966 has 4 divisors (see below), whose sum is σ = 120508452. Its totient is φ = 40169482.

The previous prime is 80338939. The next prime is 80338969. The reversal of 80338966 is 66983308.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80338969) 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 as a sum of consecutive naturals, namely, 20084740 + ... + 20084743.

It is an arithmetic number, because the mean of its divisors is an integer number (30127113).

Almost surely, 280338966 is an apocalyptic number.

80338966 is a deficient number, since it is larger than the sum of its proper divisors (40169486).

80338966 is a wasteful number, since it uses less digits than its factorization.

80338966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40169485.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 80338966 is about 8963.2006560157. The cubic root of 80338966 is about 431.4946472672.

The spelling of 80338966 in words is "eighty million, three hundred thirty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 40169483 80338966