Base | Representation |
---|---|
bin | 1001100101100… |
… | …01001010000001 |
3 | 12121022121221120 |
4 | 10302301022001 |
5 | 131041324114 |
6 | 11551342453 |
7 | 1664352042 |
oct | 462611201 |
9 | 177277846 |
10 | 80417409 |
11 | 41436876 |
12 | 22b21a29 |
13 | 13878387 |
14 | a9748c9 |
15 | 70d75a9 |
hex | 4cb1281 |
80417409 has 4 divisors (see below), whose sum is σ = 107223216. Its totient is φ = 53611604.
The previous prime is 80417399. The next prime is 80417417. The reversal of 80417409 is 90471408.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 80417409 - 221 = 78320257 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 80417409.
It is not an unprimeable number, because it can be changed into a prime (80417489) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13402899 + ... + 13402904.
It is an arithmetic number, because the mean of its divisors is an integer number (26805804).
Almost surely, 280417409 is an apocalyptic number.
It is an amenable number.
80417409 is a deficient number, since it is larger than the sum of its proper divisors (26805807).
80417409 is a wasteful number, since it uses less digits than its factorization.
80417409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26805806.
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 80417409 is about 8967.5754248292. The cubic root of 80417409 is about 431.6350387690.
The spelling of 80417409 in words is "eighty million, four hundred seventeen thousand, four hundred nine".
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