Base | Representation |
---|---|
bin | 101111111100011101… |
… | …101101011001111001 |
3 | 11220212202020112102102 |
4 | 233330131231121321 |
5 | 1320412423134331 |
6 | 35352201113145 |
7 | 3501505134554 |
oct | 577435553171 |
9 | 156782215372 |
10 | 51480286841 |
11 | 1a918309505 |
12 | 9b887887b5 |
13 | 4b1564c2b9 |
14 | 26c518169b |
15 | 15147e84cb |
hex | bfc76d679 |
51480286841 has 8 divisors (see below), whose sum is σ = 51874697160. Its totient is φ = 51087221248.
The previous prime is 51480286783. The next prime is 51480286849. The reversal of 51480286841 is 14868208415.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 19945630441 + 31534656400 = 141229^2 + 177580^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 51480286841 - 218 = 51480024697 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (51480286849) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259256 + ... + 412521.
It is an arithmetic number, because the mean of its divisors is an integer number (6484337145).
Almost surely, 251480286841 is an apocalyptic number.
It is an amenable number.
51480286841 is a deficient number, since it is larger than the sum of its proper divisors (394410319).
51480286841 is a wasteful number, since it uses less digits than its factorization.
51480286841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 672363.
The product of its (nonzero) digits is 491520, while the sum is 47.
The spelling of 51480286841 in words is "fifty-one billion, four hundred eighty million, two hundred eighty-six thousand, eight hundred forty-one".
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