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80012836 = 2231164319
BaseRepresentation
bin1001100010011…
…10011000100100
312120120001222101
410301032120210
5130440402321
611534541444
71661045401
oct461163044
9176501871
1080012836
114118a912
1222967884
1313766197
14a8ab2a8
157057791
hex4c4e624

80012836 has 12 divisors (see below), whose sum is σ = 140474880. Its totient is φ = 39877160.

The previous prime is 80012831. The next prime is 80012839. The reversal of 80012836 is 63821008.

It is not an unprimeable number, because it can be changed into a prime (80012831) 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, 30916 + ... + 33403.

It is an arithmetic number, because the mean of its divisors is an integer number (11706240).

Almost surely, 280012836 is an apocalyptic number.

It is an amenable number.

80012836 is a deficient number, since it is larger than the sum of its proper divisors (60462044).

80012836 is a wasteful number, since it uses less digits than its factorization.

80012836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64634 (or 64632 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80012836 is about 8944.9894354326. The cubic root of 80012836 is about 430.9099820437.

The spelling of 80012836 in words is "eighty million, twelve thousand, eight hundred thirty-six".

Divisors: 1 2 4 311 622 1244 64319 128638 257276 20003209 40006418 80012836