Base | Representation |
---|---|
bin | 1001100100010… |
… | …01001111000011 |
3 | 12121000022122100 |
4 | 10302021033003 |
5 | 131021111031 |
6 | 11544041443 |
7 | 1663101234 |
oct | 462111703 |
9 | 177008570 |
10 | 80253891 |
11 | 41334a33 |
12 | 22a63283 |
13 | 1381bb13 |
14 | a93108b |
15 | 70a3de6 |
hex | 4c893c3 |
80253891 has 12 divisors (see below), whose sum is σ = 122023720. Its totient is φ = 50686560.
The previous prime is 80253883. The next prime is 80253907. The reversal of 80253891 is 19835208.
It is not a de Polignac number, because 80253891 - 23 = 80253883 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80252891) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234490 + ... + 234831.
Almost surely, 280253891 is an apocalyptic number.
80253891 is a deficient number, since it is larger than the sum of its proper divisors (41769829).
80253891 is a wasteful number, since it uses less digits than its factorization.
80253891 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 469346 (or 469343 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 36.
The square root of 80253891 is about 8958.4536053942. The cubic root of 80253891 is about 431.3422829605.
The spelling of 80253891 in words is "eighty million, two hundred fifty-three thousand, eight hundred ninety-one".
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