Base | Representation |
---|---|
bin | 1001101001001… |
… | …11101101001100 |
3 | 12122020022000222 |
4 | 10310213231030 |
5 | 131202343423 |
6 | 12010010512 |
7 | 2001443525 |
oct | 464475514 |
9 | 178208028 |
10 | 80902988 |
11 | 41738681 |
12 | 23116a38 |
13 | 139b83ba |
14 | aa5d84c |
15 | 71813c8 |
hex | 4d27b4c |
80902988 has 36 divisors (see below), whose sum is σ = 150738840. Its totient is φ = 37986624.
The previous prime is 80902981. The next prime is 80903003. The reversal of 80902988 is 88920908.
It is not an unprimeable number, because it can be changed into a prime (80902981) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258320 + ... + 258632.
It is an arithmetic number, because the mean of its divisors is an integer number (4187190).
Almost surely, 280902988 is an apocalyptic number.
It is an amenable number.
80902988 is a deficient number, since it is larger than the sum of its proper divisors (69835852).
80902988 is a wasteful number, since it uses less digits than its factorization.
80902988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 534 (or 513 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 44.
The square root of 80902988 is about 8994.6088297380. The cubic root of 80902988 is about 432.5020668818.
The spelling of 80902988 in words is "eighty million, nine hundred two thousand, nine hundred eighty-eight".
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