Base | Representation |
---|---|
bin | 1001101001010… |
… | …10101001011111 |
3 | 12122020220120022 |
4 | 10310222221133 |
5 | 131203240124 |
6 | 12010142355 |
7 | 2001523622 |
oct | 464525137 |
9 | 178226508 |
10 | 80915039 |
11 | 41746737 |
12 | 231219bb |
13 | 139c0a2a |
14 | aa63db9 |
15 | 7184c5e |
hex | 4d2aa5f |
80915039 has 8 divisors (see below), whose sum is σ = 82758720. Its totient is φ = 79092000.
The previous prime is 80914987. The next prime is 80915071. The reversal of 80915039 is 93051908.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80915039 - 212 = 80910943 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80935039) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 13049.
It is an arithmetic number, because the mean of its divisors is an integer number (10344840).
Almost surely, 280915039 is an apocalyptic number.
80915039 is a deficient number, since it is larger than the sum of its proper divisors (1843681).
80915039 is a wasteful number, since it uses less digits than its factorization.
80915039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10321.
The product of its (nonzero) digits is 9720, while the sum is 35.
The square root of 80915039 is about 8995.2787060769. The cubic root of 80915039 is about 432.5235404341.
The spelling of 80915039 in words is "eighty million, nine hundred fifteen thousand, thirty-nine".
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