Base | Representation |
---|---|
bin | 101000110011101… |
… | …1010101000000000 |
3 | 10112102112222212120 |
4 | 1101213122220000 |
5 | 10301014142133 |
6 | 343512324240 |
7 | 45634514604 |
oct | 12147325000 |
9 | 3472488776 |
10 | 1369287168 |
11 | 642a21797 |
12 | 3226a3680 |
13 | 18a8b71c2 |
14 | cdbd9504 |
15 | 80329ab3 |
hex | 519daa00 |
1369287168 has 160 divisors (see below), whose sum is σ = 3959746560. Its totient is φ = 418775040.
The previous prime is 1369287167. The next prime is 1369287173. The reversal of 1369287168 is 8617829631.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a self number, because there is not a number n which added to its sum of digits gives 1369287168.
It is not an unprimeable number, because it can be changed into a prime (1369287167) 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, 1069953 + ... + 1071231.
It is an arithmetic number, because the mean of its divisors is an integer number (24748416).
Almost surely, 21369287168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1369287168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979873280).
1369287168 is an abundant number, since it is smaller than the sum of its proper divisors (2590459392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1369287168 is a wasteful number, since it uses less digits than its factorization.
1369287168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1358 (or 1342 counting only the distinct ones).
The product of its digits is 870912, while the sum is 51.
The square root of 1369287168 is about 37003.8804451641. The cubic root of 1369287168 is about 1110.4478802919.
The spelling of 1369287168 in words is "one billion, three hundred sixty-nine million, two hundred eighty-seven thousand, one hundred sixty-eight".
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