Base | Representation |
---|---|
bin | 1001100101011… |
… | …10101011000111 |
3 | 12121022002222220 |
4 | 10302232223013 |
5 | 131041012424 |
6 | 11551223423 |
7 | 1664310303 |
oct | 462565307 |
9 | 177262886 |
10 | 80407239 |
11 | 4142a170 |
12 | 22b17b73 |
13 | 13873863 |
14 | a970d03 |
15 | 70d4579 |
hex | 4caeac7 |
80407239 has 16 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 48625760.
The previous prime is 80407231. The next prime is 80407267. The reversal of 80407239 is 93270408.
It is a cyclic number.
It is not a de Polignac number, because 80407239 - 23 = 80407231 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80407231) 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, 14404 + ... + 19190.
It is an arithmetic number, because the mean of its divisors is an integer number (7325640).
Almost surely, 280407239 is an apocalyptic number.
80407239 is a deficient number, since it is larger than the sum of its proper divisors (36803001).
80407239 is a wasteful number, since it uses less digits than its factorization.
80407239 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5310.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 80407239 is about 8967.0083639974. The cubic root of 80407239 is about 431.6168424047.
The spelling of 80407239 in words is "eighty million, four hundred seven thousand, two hundred thirty-nine".
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