Base | Representation |
---|---|
bin | 1001100100011… |
… | …11110110110100 |
3 | 12121001200211211 |
4 | 10302033312310 |
5 | 131022443022 |
6 | 11544411204 |
7 | 1663243300 |
oct | 462176664 |
9 | 177050754 |
10 | 80281012 |
11 | 41353349 |
12 | 22a76b04 |
13 | 1382b276 |
14 | a93ad00 |
15 | 70abe77 |
hex | 4c8fdb4 |
80281012 has 18 divisors (see below), whose sum is σ = 163429602. Its totient is φ = 34406064.
The previous prime is 80280997. The next prime is 80281027. The reversal of 80281012 is 21018208.
It is an interprime number because it is at equal distance from previous prime (80280997) and next prime (80281027).
It can be written as a sum of positive squares in only one way, i.e., 41293476 + 38987536 = 6426^2 + 6244^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204603 + ... + 204994.
Almost surely, 280281012 is an apocalyptic number.
It is an amenable number.
80281012 is an abundant number, since it is smaller than the sum of its proper divisors (83148590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80281012 is a wasteful number, since it uses less digits than its factorization.
80281012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 409615 (or 409606 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 22.
The square root of 80281012 is about 8959.9671874399. The cubic root of 80281012 is about 431.3908667586.
The spelling of 80281012 in words is "eighty million, two hundred eighty-one thousand, twelve".
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