Base | Representation |
---|---|
bin | 1001101000011… |
… | …01011100010001 |
3 | 12122000211110120 |
4 | 10310031130101 |
5 | 131140423114 |
6 | 12003420453 |
7 | 2000515062 |
oct | 464153421 |
9 | 178024416 |
10 | 80795409 |
11 | 41674872 |
12 | 23084729 |
13 | 1397b446 |
14 | aa32569 |
15 | 715e5a9 |
hex | 4d0d711 |
80795409 has 16 divisors (see below), whose sum is σ = 110880000. Its totient is φ = 52302096.
The previous prime is 80795401. The next prime is 80795411. The reversal of 80795409 is 90459708.
It is not a de Polignac number, because 80795409 - 23 = 80795401 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80795401) 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, 21342 + ... + 24840.
It is an arithmetic number, because the mean of its divisors is an integer number (6930000).
Almost surely, 280795409 is an apocalyptic number.
It is an amenable number.
80795409 is a deficient number, since it is larger than the sum of its proper divisors (30084591).
80795409 is a wasteful number, since it uses less digits than its factorization.
80795409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3724.
The product of its (nonzero) digits is 90720, while the sum is 42.
The square root of 80795409 is about 8988.6266470468. The cubic root of 80795409 is about 432.3102784221.
The spelling of 80795409 in words is "eighty million, seven hundred ninety-five thousand, four hundred nine".
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