Base | Representation |
---|---|
bin | 1011111010100… |
… | …0011001101001 |
3 | 10111000212211222 |
4 | 2332220121221 |
5 | 100243112331 |
6 | 4543031425 |
7 | 1144522262 |
oct | 276503151 |
9 | 114025758 |
10 | 49972841 |
11 | 26232376 |
12 | 1489b575 |
13 | a478c39 |
14 | 68cb969 |
15 | 45c1b7b |
hex | 2fa8669 |
49972841 has 4 divisors (see below), whose sum is σ = 50013252. Its totient is φ = 49932432.
The previous prime is 49972817. The next prime is 49972883. The reversal of 49972841 is 14827994.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14827994 = 2 ⋅7413997.
It can be written as a sum of positive squares in 2 ways, for example, as 42250000 + 7722841 = 6500^2 + 2779^2 .
It is a cyclic number.
It is not a de Polignac number, because 49972841 - 26 = 49972777 is a prime.
It is a super-2 number, since 2×499728412 = 4994569675222562, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 49972792 and 49972801.
It is not an unprimeable number, because it can be changed into a prime (49972801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18290 + ... + 20843.
It is an arithmetic number, because the mean of its divisors is an integer number (12503313).
Almost surely, 249972841 is an apocalyptic number.
It is an amenable number.
49972841 is a deficient number, since it is larger than the sum of its proper divisors (40411).
49972841 is a wasteful number, since it uses less digits than its factorization.
49972841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40410.
The product of its digits is 145152, while the sum is 44.
The square root of 49972841 is about 7069.1471197026. The cubic root of 49972841 is about 368.3364347088.
The spelling of 49972841 in words is "forty-nine million, nine hundred seventy-two thousand, eight hundred forty-one".
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