Base | Representation |
---|---|
bin | 1011101111000… |
… | …0101010111001 |
3 | 10102121122112101 |
4 | 2323300222321 |
5 | 100100022111 |
6 | 4514543401 |
7 | 1135236235 |
oct | 273605271 |
9 | 112548471 |
10 | 49220281 |
11 | 25868a20 |
12 | 14597b61 |
13 | a274536 |
14 | 67735c5 |
15 | 44c3bc1 |
hex | 2ef0ab9 |
49220281 has 8 divisors (see below), whose sum is σ = 55427328. Its totient is φ = 43302000.
The previous prime is 49220267. The next prime is 49220291. The reversal of 49220281 is 18202294.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 49220281 - 211 = 49218233 is a prime.
It is a super-2 number, since 2×492202812 = 4845272123437922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (49220231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71830 + ... + 72511.
It is an arithmetic number, because the mean of its divisors is an integer number (6928416).
Almost surely, 249220281 is an apocalyptic number.
It is an amenable number.
49220281 is a deficient number, since it is larger than the sum of its proper divisors (6207047).
49220281 is a wasteful number, since it uses less digits than its factorization.
49220281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 144383.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 49220281 is about 7015.7167132090. The cubic root of 49220281 is about 366.4781020339.
The spelling of 49220281 in words is "forty-nine million, two hundred twenty thousand, two hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •