Base | Representation |
---|---|
bin | 1001100110110… |
… | …10101010011001 |
3 | 12121122021011011 |
4 | 10303122222121 |
5 | 131112244132 |
6 | 11555133521 |
7 | 1665660511 |
oct | 463325231 |
9 | 177567134 |
10 | 80587417 |
11 | 41542579 |
12 | 22ba42a1 |
13 | 13907881 |
14 | a9ba841 |
15 | 711cb47 |
hex | 4cdaa99 |
80587417 has 4 divisors (see below), whose sum is σ = 84828880. Its totient is φ = 76345956.
The previous prime is 80587393. The next prime is 80587421. The reversal of 80587417 is 71478508.
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 a de Polignac number, because none of the positive numbers 2k-80587417 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80587417.
It is not an unprimeable number, because it can be changed into a prime (80587457) 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, 2120703 + ... + 2120740.
It is an arithmetic number, because the mean of its divisors is an integer number (21207220).
Almost surely, 280587417 is an apocalyptic number.
It is an amenable number.
80587417 is a deficient number, since it is larger than the sum of its proper divisors (4241463).
80587417 is a wasteful number, since it uses less digits than its factorization.
80587417 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4241462.
The product of its (nonzero) digits is 62720, while the sum is 40.
The square root of 80587417 is about 8977.0494595942. The cubic root of 80587417 is about 431.9389935142.
The spelling of 80587417 in words is "eighty million, five hundred eighty-seven thousand, four hundred seventeen".
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