Base | Representation |
---|---|
bin | 1001100101111… |
… | …10011011011001 |
3 | 12121102101111220 |
4 | 10302332123121 |
5 | 131100044034 |
6 | 11552442253 |
7 | 1664666400 |
oct | 462763331 |
9 | 177371456 |
10 | 80471769 |
11 | 414736a4 |
12 | 22b49389 |
13 | 13897041 |
14 | a98a637 |
15 | 70e8749 |
hex | 4cbe6d9 |
80471769 has 24 divisors (see below), whose sum is σ = 126540000. Its totient is φ = 45347904.
The previous prime is 80471767. The next prime is 80471803. The reversal of 80471769 is 96717408.
It is not a de Polignac number, because 80471769 - 21 = 80471767 is a prime.
It is a super-3 number, since 3×804717693 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 80471769.
It is not an unprimeable number, because it can be changed into a prime (80471767) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6982 + ... + 14480.
It is an arithmetic number, because the mean of its divisors is an integer number (5272500).
Almost surely, 280471769 is an apocalyptic number.
It is an amenable number.
80471769 is a deficient number, since it is larger than the sum of its proper divisors (46068231).
80471769 is a wasteful number, since it uses less digits than its factorization.
80471769 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7589 (or 7582 counting only the distinct ones).
The product of its (nonzero) digits is 84672, while the sum is 42.
The square root of 80471769 is about 8970.6058323839. The cubic root of 80471769 is about 431.7322747450.
The spelling of 80471769 in words is "eighty million, four hundred seventy-one thousand, seven hundred sixty-nine".
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