Base | Representation |
---|---|
bin | 1001100011011… |
… | …00110010000001 |
3 | 12120210101202211 |
4 | 10301230302001 |
5 | 131003343340 |
6 | 11541342121 |
7 | 1662104401 |
oct | 461546201 |
9 | 176711684 |
10 | 80137345 |
11 | 41265412 |
12 | 22a07941 |
13 | 137aaa62 |
14 | a900801 |
15 | 707e5ea |
hex | 4c6cc81 |
80137345 has 24 divisors (see below), whose sum is σ = 103602240. Its totient is φ = 59330880.
The previous prime is 80137333. The next prime is 80137349. The reversal of 80137345 is 54373108.
It is not a de Polignac number, because 80137345 - 223 = 71748737 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80137349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735151 + ... + 735259.
It is an arithmetic number, because the mean of its divisors is an integer number (4316760).
Almost surely, 280137345 is an apocalyptic number.
It is an amenable number.
80137345 is a deficient number, since it is larger than the sum of its proper divisors (23464895).
80137345 is a wasteful number, since it uses less digits than its factorization.
80137345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 313 (or 204 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 31.
The square root of 80137345 is about 8951.9464363902. The cubic root of 80137345 is about 431.1333810551.
The spelling of 80137345 in words is "eighty million, one hundred thirty-seven thousand, three hundred forty-five".
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