Base | Representation |
---|---|
bin | 1011010111101… |
… | …1010011001001 |
3 | 10022201221200121 |
4 | 2311323103021 |
5 | 44202102303 |
6 | 4422103241 |
7 | 1116236452 |
oct | 265732311 |
9 | 108657617 |
10 | 47690953 |
11 | 24a13a12 |
12 | 13b7ab21 |
13 | 9b5a3cb |
14 | 6496129 |
15 | 42c09bd |
hex | 2d7b4c9 |
47690953 has 4 divisors (see below), whose sum is σ = 47706388. Its totient is φ = 47675520.
The previous prime is 47690921. The next prime is 47690963. The reversal of 47690953 is 35909674.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35909674 = 2 ⋅17954837.
It can be written as a sum of positive squares in 2 ways, for example, as 5531904 + 42159049 = 2352^2 + 6493^2 .
It is a cyclic number.
It is not a de Polignac number, because 47690953 - 25 = 47690921 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47690963) 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, 1308 + ... + 9853.
It is an arithmetic number, because the mean of its divisors is an integer number (11926597).
Almost surely, 247690953 is an apocalyptic number.
It is an amenable number.
47690953 is a deficient number, since it is larger than the sum of its proper divisors (15435).
47690953 is a wasteful number, since it uses less digits than its factorization.
47690953 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15434.
The product of its (nonzero) digits is 204120, while the sum is 43.
The square root of 47690953 is about 6905.8636679274. The cubic root of 47690953 is about 362.6424724157.
The spelling of 47690953 in words is "forty-seven million, six hundred ninety thousand, nine hundred fifty-three".
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