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80311336 = 2371434131
BaseRepresentation
bin1001100100101…
…11010000101000
312121010020102221
410302113100220
5131024430321
611545203424
71663430560
oct462272050
9177106387
1080311336
1141374106
1222a90574
131383c001
14a947da0
1570b5e41
hex4c97428

80311336 has 16 divisors (see below), whose sum is σ = 172095840. Its totient is φ = 34419120.

The previous prime is 80311327. The next prime is 80311339. The reversal of 80311336 is 63311308.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80311336.

It is not an unprimeable number, because it can be changed into a prime (80311339) 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, 717010 + ... + 717121.

It is an arithmetic number, because the mean of its divisors is an integer number (10755990).

Almost surely, 280311336 is an apocalyptic number.

It is an amenable number.

80311336 is an abundant number, since it is smaller than the sum of its proper divisors (91784504).

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

80311336 is a wasteful number, since it uses less digits than its factorization.

80311336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434144 (or 1434140 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 80311336 is about 8961.6592213719. The cubic root of 80311336 is about 431.4451753662.

The spelling of 80311336 in words is "eighty million, three hundred eleven thousand, three hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 1434131 2868262 5736524 10038917 11473048 20077834 40155668 80311336