Base | Representation |
---|---|
bin | 1001100100000… |
… | …11000110100001 |
3 | 12120222001011220 |
4 | 10302003012201 |
5 | 131014310034 |
6 | 11543325253 |
7 | 1662635055 |
oct | 462030641 |
9 | 176861156 |
10 | 80228769 |
11 | 41318075 |
12 | 22a50829 |
13 | 1381055a |
14 | a925c65 |
15 | 709b749 |
hex | 4c831a1 |
80228769 has 8 divisors (see below), whose sum is σ = 107264640. Its totient is φ = 53339376.
The previous prime is 80228747. The next prime is 80228777. The reversal of 80228769 is 96782208.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80228769 - 29 = 80228257 is a prime.
It is a super-2 number, since 2×802287692 = 12873310750510722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 80228769.
It is not an unprimeable number, because it can be changed into a prime (80228779) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35334 + ... + 37535.
It is an arithmetic number, because the mean of its divisors is an integer number (13408080).
Almost surely, 280228769 is an apocalyptic number.
It is an amenable number.
80228769 is a deficient number, since it is larger than the sum of its proper divisors (27035871).
80228769 is a wasteful number, since it uses less digits than its factorization.
80228769 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73239.
The product of its (nonzero) digits is 96768, while the sum is 42.
The square root of 80228769 is about 8957.0513563337. The cubic root of 80228769 is about 431.2972703487.
The spelling of 80228769 in words is "eighty million, two hundred twenty-eight thousand, seven hundred sixty-nine".
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