Base | Representation |
---|---|
bin | 1001100111110… |
… | …01001101011101 |
3 | 12121212121210101 |
4 | 10303321031131 |
5 | 131130300131 |
6 | 12001541101 |
7 | 2000021350 |
oct | 463711535 |
9 | 177777711 |
10 | 80712541 |
11 | 41618588 |
12 | 23044791 |
13 | 1394c800 |
14 | aa10297 |
15 | 7144c61 |
hex | 4cf935d |
80712541 has 12 divisors (see below), whose sum is σ = 99885792. Its totient is φ = 63859536.
The previous prime is 80712529. The next prime is 80712581. The reversal of 80712541 is 14521708.
80712541 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.
It is not a de Polignac number, because 80712541 - 217 = 80581469 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80712521) 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, 32931 + ... + 35296.
It is an arithmetic number, because the mean of its divisors is an integer number (8323816).
Almost surely, 280712541 is an apocalyptic number.
It is an amenable number.
80712541 is a deficient number, since it is larger than the sum of its proper divisors (19173251).
80712541 is a wasteful number, since it uses less digits than its factorization.
80712541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68260 (or 68247 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 28.
The square root of 80712541 is about 8984.0158615176. The cubic root of 80712541 is about 432.1624278471.
The spelling of 80712541 in words is "eighty million, seven hundred twelve thousand, five hundred forty-one".
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