Base | Representation |
---|---|
bin | 1001100010100… |
… | …00000100100000 |
3 | 12120120102110020 |
4 | 10301100010200 |
5 | 130441112434 |
6 | 11535033440 |
7 | 1661104500 |
oct | 461200440 |
9 | 176512406 |
10 | 80019744 |
11 | 41195022 |
12 | 2296b880 |
13 | 1376937c |
14 | a8ada00 |
15 | 7059849 |
hex | 4c50120 |
80019744 has 72 divisors (see below), whose sum is σ = 244360368. Its totient is φ = 22861440.
The previous prime is 80019733. The next prime is 80019749. The reversal of 80019744 is 44791008.
It is not an unprimeable number, because it can be changed into a prime (80019749) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3802 + ... + 13209.
It is an arithmetic number, because the mean of its divisors is an integer number (3393894).
Almost surely, 280019744 is an apocalyptic number.
80019744 is a gapful number since it is divisible by the number (84) formed by its first and last digit.
It is an amenable number.
80019744 is an abundant number, since it is smaller than the sum of its proper divisors (164340624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80019744 is a wasteful number, since it uses less digits than its factorization.
80019744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17038 (or 17023 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 80019744 is about 8945.3755650615. The cubic root of 80019744 is about 430.9223827227.
The spelling of 80019744 in words is "eighty million, nineteen thousand, seven hundred forty-four".
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