Base | Representation |
---|---|
bin | 1001100101000… |
… | …00101100000011 |
3 | 12121012012102021 |
4 | 10302200230003 |
5 | 131032144310 |
6 | 11550102311 |
7 | 1663651300 |
oct | 462405403 |
9 | 177165367 |
10 | 80349955 |
11 | 413a0124 |
12 | 22aaa997 |
13 | 1385376a |
14 | a9580a7 |
15 | 70c25da |
hex | 4ca0b03 |
80349955 has 48 divisors (see below), whose sum is σ = 121232160. Its totient is φ = 50803200.
The previous prime is 80349949. The next prime is 80349959. The reversal of 80349955 is 55994308.
It is a happy number.
It is not a de Polignac number, because 80349955 - 219 = 79825667 is a prime.
It is a super-2 number, since 2×803499552 = 12912230537004050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (80349959) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190645 + ... + 191065.
It is an arithmetic number, because the mean of its divisors is an integer number (2525670).
Almost surely, 280349955 is an apocalyptic number.
80349955 is a deficient number, since it is larger than the sum of its proper divisors (40882205).
80349955 is a wasteful number, since it uses less digits than its factorization.
80349955 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 500 (or 493 counting only the distinct ones).
The product of its (nonzero) digits is 194400, while the sum is 43.
The square root of 80349955 is about 8963.8136415256. The cubic root of 80349955 is about 431.5143200725.
The spelling of 80349955 in words is "eighty million, three hundred forty-nine thousand, nine hundred fifty-five".
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