Base | Representation |
---|---|
bin | 1110001011010101010… |
… | …11110101000111001101 |
3 | 1201120100022102211020022 |
4 | 13011222223311013031 |
5 | 30440111010212320 |
6 | 1011440321231525 |
7 | 50123213463452 |
oct | 7055253650715 |
9 | 1646308384208 |
10 | 487121179085 |
11 | 17865022a752 |
12 | 7a4a7a925a5 |
13 | 36c20bc6898 |
14 | 198109dd829 |
15 | ca1016b325 |
hex | 716aaf51cd |
487121179085 has 16 divisors (see below), whose sum is σ = 619028245296. Its totient is φ = 366715634688.
The previous prime is 487121179081. The next prime is 487121179091. The reversal of 487121179085 is 580971121784.
It can be written as a sum of positive squares in 8 ways, for example, as 143304841 + 486977874244 = 11971^2 + 697838^2 .
It is a cyclic number.
It is not a de Polignac number, because 487121179085 - 22 = 487121179081 is a prime.
It is a super-2 number, since 2×4871211790852 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487121179081) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92087 + ... + 991323.
It is an arithmetic number, because the mean of its divisors is an integer number (38689265331).
Almost surely, 2487121179085 is an apocalyptic number.
It is an amenable number.
487121179085 is a deficient number, since it is larger than the sum of its proper divisors (131907066211).
487121179085 is a wasteful number, since it uses less digits than its factorization.
487121179085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 905632.
The product of its (nonzero) digits is 1128960, while the sum is 53.
The spelling of 487121179085 in words is "four hundred eighty-seven billion, one hundred twenty-one million, one hundred seventy-nine thousand, eighty-five".
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