Base | Representation |
---|---|
bin | 1001100011000… |
… | …01010101000111 |
3 | 12120201000102120 |
4 | 10301201111013 |
5 | 131000343224 |
6 | 11540341023 |
7 | 1661520552 |
oct | 461412507 |
9 | 176630376 |
10 | 80090439 |
11 | 41233150 |
12 | 229a4773 |
13 | 137925c0 |
14 | a8cb699 |
15 | 7070779 |
hex | 4c61547 |
80090439 has 32 divisors (see below), whose sum is σ = 130927104. Its totient is φ = 42852480.
The previous prime is 80090419. The next prime is 80090441. The reversal of 80090439 is 93409008.
It is not a de Polignac number, because 80090439 - 25 = 80090407 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 (80090419) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5809 + ... + 13925.
It is an arithmetic number, because the mean of its divisors is an integer number (4091472).
Almost surely, 280090439 is an apocalyptic number.
80090439 is a deficient number, since it is larger than the sum of its proper divisors (50836665).
80090439 is a wasteful number, since it uses less digits than its factorization.
80090439 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8167.
The product of its (nonzero) digits is 7776, while the sum is 33.
The square root of 80090439 is about 8949.3261757520. The cubic root of 80090439 is about 431.0492476245.
The spelling of 80090439 in words is "eighty million, ninety thousand, four hundred thirty-nine".
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