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81341848 = 2371452533
BaseRepresentation
bin1001101100100…
…10110110011000
312200001121001001
410312102312120
5131310414343
612023234344
72005252150
oct466226630
9180047031
1081341848
1141a08375
12232a89b4
1313b10093
14ab35760
15721b44d
hex4d92d98

81341848 has 16 divisors (see below), whose sum is σ = 174304080. Its totient is φ = 34860768.

The previous prime is 81341837. The next prime is 81341863. The reversal of 81341848 is 84814318.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726211 + ... + 726322.

It is an arithmetic number, because the mean of its divisors is an integer number (10894005).

Almost surely, 281341848 is an apocalyptic number.

It is an amenable number.

81341848 is an abundant number, since it is smaller than the sum of its proper divisors (92962232).

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

81341848 is a wasteful number, since it uses less digits than its factorization.

81341848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452546 (or 1452542 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 81341848 is about 9018.9715599951. The cubic root of 81341848 is about 433.2826959896.

The spelling of 81341848 in words is "eighty-one million, three hundred forty-one thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 1452533 2905066 5810132 10167731 11620264 20335462 40670924 81341848