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71348080 = 245891851
BaseRepresentation
bin1000100000010…
…10111101110000
311222020212011111
410100022331300
5121231114310
611025123104
71524306616
oct420127560
9158225144
1071348080
1137301961
121ba89494
1311a212cb
1496936b6
1563e528a
hex440af70

71348080 has 20 divisors (see below), whose sum is σ = 165884472. Its totient is φ = 28539200.

The previous prime is 71348071. The next prime is 71348119. The reversal of 71348080 is 8084317.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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, 445846 + ... + 446005.

Almost surely, 271348080 is an apocalyptic number.

It is an amenable number.

71348080 is an abundant number, since it is smaller than the sum of its proper divisors (94536392).

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

71348080 is a wasteful number, since it uses less digits than its factorization.

71348080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891864 (or 891858 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 71348080 is about 8446.7792678630. The cubic root of 71348080 is about 414.7573556168.

The spelling of 71348080 in words is "seventy-one million, three hundred forty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 891851 1783702 3567404 4459255 7134808 8918510 14269616 17837020 35674040 71348080