Base | Representation |
---|---|
bin | 1001100101010… |
… | …00000110111001 |
3 | 12121020202002211 |
4 | 10302220012321 |
5 | 131034132340 |
6 | 11550455121 |
7 | 1664136013 |
oct | 462500671 |
9 | 177222084 |
10 | 80380345 |
11 | 41410a41 |
12 | 22b044a1 |
13 | 13864546 |
14 | a9651b3 |
15 | 70cb5ea |
hex | 4ca81b9 |
80380345 has 8 divisors (see below), whose sum is σ = 97412040. Its totient is φ = 63667200.
The previous prime is 80380337. The next prime is 80380357. The reversal of 80380345 is 54308308.
It can be written as a sum of positive squares in 4 ways, for example, as 6471936 + 73908409 = 2544^2 + 8597^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80380345 - 23 = 80380337 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79080 + ... + 80089.
It is an arithmetic number, because the mean of its divisors is an integer number (12176505).
Almost surely, 280380345 is an apocalyptic number.
It is an amenable number.
80380345 is a deficient number, since it is larger than the sum of its proper divisors (17031695).
80380345 is a wasteful number, since it uses less digits than its factorization.
80380345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159275.
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 80380345 is about 8965.5086303009. The cubic root of 80380345 is about 431.5687157356.
The spelling of 80380345 in words is "eighty million, three hundred eighty thousand, three hundred forty-five".
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