Base | Representation |
---|---|
bin | 1001100010100… |
… | …11000000000000 |
3 | 12120121000220200 |
4 | 10301103000000 |
5 | 130442003434 |
6 | 11535205200 |
7 | 1661154462 |
oct | 461230000 |
9 | 176530820 |
10 | 80031744 |
11 | 411a3041 |
12 | 22976800 |
13 | 13771980 |
14 | a8b4132 |
15 | 705d199 |
hex | 4c53000 |
80031744 has 156 divisors (see below), whose sum is σ = 250448016. Its totient is φ = 24477696.
The previous prime is 80031727. The next prime is 80031751. The reversal of 80031744 is 44713008.
It is a tau number, because it is divible by the number of its divisors (156).
It is an unprimeable number.
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, 479149 + ... + 479315.
It is an arithmetic number, because the mean of its divisors is an integer number (1605436).
Almost surely, 280031744 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80031744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125224008).
80031744 is an abundant number, since it is smaller than the sum of its proper divisors (170416272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80031744 is a wasteful number, since it uses less digits than its factorization.
80031744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 210 (or 185 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 80031744 is about 8946.0462775463. The cubic root of 80031744 is about 430.9439224489.
The spelling of 80031744 in words is "eighty million, thirty-one thousand, seven hundred forty-four".
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