Base | Representation |
---|---|
bin | 100101100101011111… |
… | …1101010111110001111 |
3 | 21201100011200220211220 |
4 | 1023022333222332033 |
5 | 2310301031200142 |
6 | 101025140414423 |
7 | 5555124013251 |
oct | 1131277527617 |
9 | 251304626756 |
10 | 80715100047 |
11 | 3125a62a35a |
12 | 137873a7413 |
13 | 77c433023a |
14 | 3c99b23cd1 |
15 | 21761752ec |
hex | 12cafeaf8f |
80715100047 has 16 divisors (see below), whose sum is σ = 108740862720. Its totient is φ = 53252177472.
The previous prime is 80715099947. The next prime is 80715100051. The reversal of 80715100047 is 74000151708.
It is not a de Polignac number, because 80715100047 - 28 = 80715099791 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 80715099990 and 80715100017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80715100087) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178683 + ... + 439724.
It is an arithmetic number, because the mean of its divisors is an integer number (6796303920).
Almost surely, 280715100047 is an apocalyptic number.
80715100047 is a deficient number, since it is larger than the sum of its proper divisors (28025762673).
80715100047 is a wasteful number, since it uses less digits than its factorization.
80715100047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 618862.
The product of its (nonzero) digits is 7840, while the sum is 33.
The spelling of 80715100047 in words is "eighty billion, seven hundred fifteen million, one hundred thousand, forty-seven".
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