Base | Representation |
---|---|
bin | 1001100100101… |
… | …10011010001101 |
3 | 12121010001122221 |
4 | 10302112122031 |
5 | 131024322403 |
6 | 11545135341 |
7 | 1663414453 |
oct | 462263215 |
9 | 177101587 |
10 | 80307853 |
11 | 4137152a |
12 | 22a8a551 |
13 | 1383a552 |
14 | a9469d3 |
15 | 70b4dbd |
hex | 4c9668d |
80307853 has 4 divisors (see below), whose sum is σ = 80535708. Its totient is φ = 80080000.
The previous prime is 80307793. The next prime is 80307863. The reversal of 80307853 is 35870308.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 15069924 + 65237929 = 3882^2 + 8077^2 .
It is a cyclic number.
It is not a de Polignac number, because 80307853 - 221 = 78210701 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80307863) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113398 + ... + 114103.
It is an arithmetic number, because the mean of its divisors is an integer number (20133927).
Almost surely, 280307853 is an apocalyptic number.
It is an amenable number.
80307853 is a deficient number, since it is larger than the sum of its proper divisors (227855).
80307853 is a wasteful number, since it uses less digits than its factorization.
80307853 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 227854.
The product of its (nonzero) digits is 20160, while the sum is 34.
The square root of 80307853 is about 8961.4648914114. The cubic root of 80307853 is about 431.4389382008.
The spelling of 80307853 in words is "eighty million, three hundred seven thousand, eight hundred fifty-three".
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