Base | Representation |
---|---|
bin | 1011001101001… |
… | …0100111111001 |
3 | 10021102211221212 |
4 | 2303102213321 |
5 | 44013000212 |
6 | 4355212505 |
7 | 1110331256 |
oct | 263224771 |
9 | 107384855 |
10 | 47000057 |
11 | 24591925 |
12 | 138a7135 |
13 | 9977ab0 |
14 | 635642d |
15 | 41d5e22 |
hex | 2cd29f9 |
47000057 has 4 divisors (see below), whose sum is σ = 50615460. Its totient is φ = 43384656.
The previous prime is 47000011. The next prime is 47000059. The reversal of 47000057 is 75000074.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75000074 = 2 ⋅37500037.
It can be written as a sum of positive squares in 2 ways, for example, as 4280761 + 42719296 = 2069^2 + 6536^2 .
It is a cyclic number.
It is not a de Polignac number, because 47000057 - 212 = 46995961 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 46999996 and 47000041.
It is not an unprimeable number, because it can be changed into a prime (47000059) 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, 1807682 + ... + 1807707.
It is an arithmetic number, because the mean of its divisors is an integer number (12653865).
Almost surely, 247000057 is an apocalyptic number.
It is an amenable number.
47000057 is a deficient number, since it is larger than the sum of its proper divisors (3615403).
47000057 is a wasteful number, since it uses less digits than its factorization.
47000057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3615402.
The product of its (nonzero) digits is 980, while the sum is 23.
The square root of 47000057 is about 6855.6587575520. The cubic root of 47000057 is about 360.8827539025.
The spelling of 47000057 in words is "forty-seven million, fifty-seven", and thus it is an aban number and an uban number.
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