Base | Representation |
---|---|
bin | 1100001111111… |
… | …1111110101101 |
3 | 10120200101022012 |
4 | 3003333332231 |
5 | 101123131031 |
6 | 5033131005 |
7 | 1162503221 |
oct | 303777655 |
9 | 116611265 |
10 | 51380141 |
11 | 2700372a |
12 | 15259a65 |
13 | a84c667 |
14 | 6b76781 |
15 | 479db2b |
hex | 30fffad |
51380141 has 8 divisors (see below), whose sum is σ = 54389280. Its totient is φ = 48453552.
The previous prime is 51380111. The next prime is 51380149. The reversal of 51380141 is 14108315.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-51380141 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (51380149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19355 + ... + 21848.
It is an arithmetic number, because the mean of its divisors is an integer number (6798660).
Almost surely, 251380141 is an apocalyptic number.
It is an amenable number.
51380141 is a deficient number, since it is larger than the sum of its proper divisors (3009139).
51380141 is a wasteful number, since it uses less digits than its factorization.
51380141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41275.
The product of its (nonzero) digits is 480, while the sum is 23.
The square root of 51380141 is about 7167.9942103771. The cubic root of 51380141 is about 371.7620867654.
Adding to 51380141 its reverse (14108315), we get a palindrome (65488456).
The spelling of 51380141 in words is "fifty-one million, three hundred eighty thousand, one hundred forty-one".
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