Base | Representation |
---|---|
bin | 1001100100111… |
… | …00010010100011 |
3 | 12121011021201000 |
4 | 10302130102203 |
5 | 131031110224 |
6 | 11545443043 |
7 | 1663544622 |
oct | 462342243 |
9 | 177137630 |
10 | 80331939 |
11 | 41388636 |
12 | 22aa0483 |
13 | 138484bc |
14 | a9516b9 |
15 | 70bc0c9 |
hex | 4c9c4a3 |
80331939 has 32 divisors (see below), whose sum is σ = 124899840. Its totient is φ = 50931936.
The previous prime is 80331887. The next prime is 80331949. The reversal of 80331939 is 93913308.
It is not a de Polignac number, because 80331939 - 28 = 80331683 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80331949) 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, 171784 + ... + 172250.
It is an arithmetic number, because the mean of its divisors is an integer number (3903120).
Almost surely, 280331939 is an apocalyptic number.
80331939 is a deficient number, since it is larger than the sum of its proper divisors (44567901).
80331939 is a wasteful number, since it uses less digits than its factorization.
80331939 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 776 (or 770 counting only the distinct ones).
The product of its (nonzero) digits is 17496, while the sum is 36.
The square root of 80331939 is about 8962.8086557730. The cubic root of 80331939 is about 431.4820664012.
The spelling of 80331939 in words is "eighty million, three hundred thirty-one thousand, nine hundred thirty-nine".
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