Base | Representation |
---|---|
bin | 1011111010101… |
… | …0001011011101 |
3 | 10111001020211202 |
4 | 2332222023131 |
5 | 100243331000 |
6 | 4543125245 |
7 | 1144552436 |
oct | 276521335 |
9 | 114036752 |
10 | 49980125 |
11 | 26237898 |
12 | 148a3825 |
13 | a47c350 |
14 | 68d048d |
15 | 45c3dd5 |
hex | 2faa2dd |
49980125 has 16 divisors (see below), whose sum is σ = 67175472. Its totient is φ = 36907200.
The previous prime is 49980121. The next prime is 49980143. The reversal of 49980125 is 52108994.
It can be written as a sum of positive squares in 8 ways, for example, as 27899524 + 22080601 = 5282^2 + 4699^2 .
It is not a de Polignac number, because 49980125 - 22 = 49980121 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49980121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13754 + ... + 17003.
It is an arithmetic number, because the mean of its divisors is an integer number (4198467).
Almost surely, 249980125 is an apocalyptic number.
It is an amenable number.
49980125 is a deficient number, since it is larger than the sum of its proper divisors (17195347).
49980125 is a wasteful number, since it uses less digits than its factorization.
49980125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30785 (or 30775 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 38.
The square root of 49980125 is about 7069.6622974510. The cubic root of 49980125 is about 368.3543299775.
It can be divided in two parts, 49980 and 125, that added together give a palindrome (50105).
The spelling of 49980125 in words is "forty-nine million, nine hundred eighty thousand, one hundred twenty-five".
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