Base | Representation |
---|---|
bin | 101000110100101… |
… | …1000110101001001 |
3 | 10112110112020222101 |
4 | 1101221120311021 |
5 | 10301132212410 |
6 | 343531353401 |
7 | 45642066655 |
oct | 12151306511 |
9 | 3473466871 |
10 | 1369804105 |
11 | 64324510a |
12 | 3228b2861 |
13 | 18aa38597 |
14 | cdcd1a65 |
15 | 803ccd3a |
hex | 51a58d49 |
1369804105 has 8 divisors (see below), whose sum is σ = 1670712264. Its totient is φ = 1077878400.
The previous prime is 1369804103. The next prime is 1369804109. The reversal of 1369804105 is 5014089631.
It can be written as a sum of positive squares in 4 ways, for example, as 29365561 + 1340438544 = 5419^2 + 36612^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1369804105 - 21 = 1369804103 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1369804103) 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, 2245276 + ... + 2245885.
It is an arithmetic number, because the mean of its divisors is an integer number (208839033).
Almost surely, 21369804105 is an apocalyptic number.
It is an amenable number.
1369804105 is a deficient number, since it is larger than the sum of its proper divisors (300908159).
1369804105 is an equidigital number, since it uses as much as digits as its factorization.
1369804105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4491227.
The product of its (nonzero) digits is 25920, while the sum is 37.
The square root of 1369804105 is about 37010.8646886289. The cubic root of 1369804105 is about 1110.5876024743.
The spelling of 1369804105 in words is "one billion, three hundred sixty-nine million, eight hundred four thousand, one hundred five".
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