Base | Representation |
---|---|
bin | 1011101101100… |
… | …0010000011001 |
3 | 10102102120100200 |
4 | 2323120100121 |
5 | 100033322111 |
6 | 4512452413 |
7 | 1134341550 |
oct | 273302031 |
9 | 112376320 |
10 | 49120281 |
11 | 257aa881 |
12 | 1454a109 |
13 | a23ab72 |
14 | 6748d97 |
15 | 44a4256 |
hex | 2ed8419 |
49120281 has 24 divisors (see below), whose sum is σ = 81304704. Its totient is φ = 27993600.
The previous prime is 49120223. The next prime is 49120297. The reversal of 49120281 is 18202194.
It is not a de Polignac number, because 49120281 - 211 = 49118233 is a prime.
It is a super-2 number, since 2×491202812 = 4825604011037922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (49120081) 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, 29881 + ... + 31481.
It is an arithmetic number, because the mean of its divisors is an integer number (3387696).
Almost surely, 249120281 is an apocalyptic number.
It is an amenable number.
49120281 is a deficient number, since it is larger than the sum of its proper divisors (32184423).
49120281 is a wasteful number, since it uses less digits than its factorization.
49120281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2101 (or 2098 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 49120281 is about 7008.5862340418. The cubic root of 49120281 is about 366.2297446738.
The spelling of 49120281 in words is "forty-nine million, one hundred twenty thousand, two hundred eighty-one".
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