Base | Representation |
---|---|
bin | 1001100111100… |
… | …11011001100101 |
3 | 12121211102010220 |
4 | 10303303121211 |
5 | 131124014431 |
6 | 12001234553 |
7 | 1666562100 |
oct | 463633145 |
9 | 177742126 |
10 | 80688741 |
11 | 41601711 |
12 | 23032a59 |
13 | 13941a23 |
14 | aa05737 |
15 | 713cb96 |
hex | 4cf3665 |
80688741 has 12 divisors (see below), whose sum is σ = 125150112. Its totient is φ = 46107768.
The previous prime is 80688733. The next prime is 80688743. The reversal of 80688741 is 14788608.
It is not a de Polignac number, because 80688741 - 23 = 80688733 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80688693 and 80688702.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80688743) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274305 + ... + 274598.
It is an arithmetic number, because the mean of its divisors is an integer number (10429176).
Almost surely, 280688741 is an apocalyptic number.
It is an amenable number.
80688741 is a deficient number, since it is larger than the sum of its proper divisors (44461371).
80688741 is a wasteful number, since it uses less digits than its factorization.
80688741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 548920 (or 548913 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 42.
The square root of 80688741 is about 8982.6911891704. The cubic root of 80688741 is about 432.1199459032.
The spelling of 80688741 in words is "eighty million, six hundred eighty-eight thousand, seven hundred forty-one".
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