Base | Representation |
---|---|
bin | 11111011100101110010… |
… | …101111011111111101011 |
3 | 21122121021222120111120010 |
4 | 133130232111323333223 |
5 | 240402011342140322 |
6 | 4332452232103003 |
7 | 312065133231324 |
oct | 37345625737753 |
9 | 7577258514503 |
10 | 2161146052587 |
11 | 76359a673245 |
12 | 2aaa17534a63 |
13 | 128a45087402 |
14 | 7685868d44b |
15 | 3b33a39b20c |
hex | 1f72e57bfeb |
2161146052587 has 16 divisors (see below), whose sum is σ = 2922347559168. Its totient is φ = 1420357548960.
The previous prime is 2161146052567. The next prime is 2161146052591. The reversal of 2161146052587 is 7852506411612.
It is a happy number.
It is not a de Polignac number, because 2161146052587 - 218 = 2161145790443 is a prime.
It is a super-2 number, since 2×21611460525872 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2161146052567) 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, 2294148 + ... + 3096030.
It is an arithmetic number, because the mean of its divisors is an integer number (182646722448).
Almost surely, 22161146052587 is an apocalyptic number.
2161146052587 is a deficient number, since it is larger than the sum of its proper divisors (761201506581).
2161146052587 is a wasteful number, since it uses less digits than its factorization.
2161146052587 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 814610.
The product of its (nonzero) digits is 806400, while the sum is 48.
The spelling of 2161146052587 in words is "two trillion, one hundred sixty-one billion, one hundred forty-six million, fifty-two thousand, five hundred eighty-seven".
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