Base | Representation |
---|---|
bin | 1100001011100… |
… | …1101111110111 |
3 | 10120010202200202 |
4 | 3002321233313 |
5 | 101034424341 |
6 | 5023031115 |
7 | 1160164433 |
oct | 302715767 |
9 | 116122622 |
10 | 51092471 |
11 | 26927591 |
12 | 1513b49b |
13 | a77b741 |
14 | 6add9c3 |
15 | 474379b |
hex | 30b9bf7 |
51092471 has 4 divisors (see below), whose sum is σ = 52280712. Its totient is φ = 49904232.
The previous prime is 51092423. The next prime is 51092527. The reversal of 51092471 is 17429015.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17429015 = 5 ⋅3485803.
It is a cyclic number.
It is not a de Polignac number, because 51092471 - 218 = 50830327 is a prime.
It is a super-3 number, since 3×510924713 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (51092401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594056 + ... + 594141.
It is an arithmetic number, because the mean of its divisors is an integer number (13070178).
Almost surely, 251092471 is an apocalyptic number.
51092471 is a deficient number, since it is larger than the sum of its proper divisors (1188241).
51092471 is a wasteful number, since it uses less digits than its factorization.
51092471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1188240.
The product of its (nonzero) digits is 2520, while the sum is 29.
The square root of 51092471 is about 7147.8997614684. The cubic root of 51092471 is about 371.0669737635.
The spelling of 51092471 in words is "fifty-one million, ninety-two thousand, four hundred seventy-one".
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