Base | Representation |
---|---|
bin | 1001100101000… |
… | …01000000111010 |
3 | 12121012021020201 |
4 | 10302201000322 |
5 | 131032220130 |
6 | 11550112414 |
7 | 1663655215 |
oct | 462410072 |
9 | 177167221 |
10 | 80351290 |
11 | 413a1128 |
12 | 22aab70a |
13 | 13854256 |
14 | a95877c |
15 | 70c2bca |
hex | 4ca103a |
80351290 has 8 divisors (see below), whose sum is σ = 144632340. Its totient is φ = 32140512.
The previous prime is 80351281. The next prime is 80351303. The reversal of 80351290 is 9215308.
It can be written as a sum of positive squares in 2 ways, for example, as 68906601 + 11444689 = 8301^2 + 3383^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4017555 + ... + 4017574.
Almost surely, 280351290 is an apocalyptic number.
80351290 is a deficient number, since it is larger than the sum of its proper divisors (64281050).
80351290 is a wasteful number, since it uses less digits than its factorization.
80351290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8035136.
The product of its (nonzero) digits is 2160, while the sum is 28.
The square root of 80351290 is about 8963.8881072892. Note that the first 3 decimals coincide. The cubic root of 80351290 is about 431.5167099034.
Adding to 80351290 its reverse (9215308), we get a palindrome (89566598).
The spelling of 80351290 in words is "eighty million, three hundred fifty-one thousand, two hundred ninety".
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