Base | Representation |
---|---|
bin | 11111101010010001101… |
… | …10110111000101110101 |
3 | 10211222221001221102001100 |
4 | 33311020312313011311 |
5 | 120310403330114434 |
6 | 2151430112520313 |
7 | 141410625333345 |
oct | 17651066670565 |
9 | 3758831842040 |
10 | 1087849066869 |
11 | 38a3994900a4 |
12 | 1569ba550099 |
13 | 7b7785a8c06 |
14 | 3a91b7dad25 |
15 | 1d46dd69699 |
hex | fd48db7175 |
1087849066869 has 12 divisors (see below), whose sum is σ = 1604770255296. Its totient is φ = 709802227752.
The previous prime is 1087849066861. The next prime is 1087849066883. The reversal of 1087849066869 is 9686609487801.
1087849066869 is a `hidden beast` number, since 1 + 0 + 8 + 78 + 490 + 6 + 6 + 8 + 69 = 666.
It is not a de Polignac number, because 1087849066869 - 23 = 1087849066861 is a prime.
It is a super-2 number, since 2×10878490668692 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1087849066797 and 1087849066806.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1087849066861) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1285873179 + ... + 1285874024.
It is an arithmetic number, because the mean of its divisors is an integer number (133730854608).
Almost surely, 21087849066869 is an apocalyptic number.
It is an amenable number.
1087849066869 is a deficient number, since it is larger than the sum of its proper divisors (516921188427).
1087849066869 is a wasteful number, since it uses less digits than its factorization.
1087849066869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2571747256 (or 2571747253 counting only the distinct ones).
The product of its (nonzero) digits is 250822656, while the sum is 72.
The spelling of 1087849066869 in words is "one trillion, eighty-seven billion, eight hundred forty-nine million, sixty-six thousand, eight hundred sixty-nine".
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