Base | Representation |
---|---|
bin | 1001101001100… |
… | …10101101010001 |
3 | 12122022120211220 |
4 | 10310302231101 |
5 | 131210314144 |
6 | 12010555253 |
7 | 2002022100 |
oct | 464625521 |
9 | 178276756 |
10 | 80948049 |
11 | 41769516 |
12 | 23138b29 |
13 | 13a02a70 |
14 | aa72037 |
15 | 718e919 |
hex | 4d32b51 |
80948049 has 24 divisors (see below), whose sum is σ = 135213120. Its totient is φ = 42696864.
The previous prime is 80948047. The next prime is 80948069. The reversal of 80948049 is 94084908.
It is not a de Polignac number, because 80948049 - 21 = 80948047 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 80948049.
It is not an unprimeable number, because it can be changed into a prime (80948041) 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 23 ways as a sum of consecutive naturals, for example, 19269 + ... + 23090.
It is an arithmetic number, because the mean of its divisors is an integer number (5633880).
Almost surely, 280948049 is an apocalyptic number.
It is an amenable number.
80948049 is a deficient number, since it is larger than the sum of its proper divisors (54265071).
80948049 is a wasteful number, since it uses less digits than its factorization.
80948049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42389 (or 42382 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 42.
The square root of 80948049 is about 8997.1133704094. The cubic root of 80948049 is about 432.5823496951.
The spelling of 80948049 in words is "eighty million, nine hundred forty-eight thousand, forty-nine".
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