Base | Representation |
---|---|
bin | 101001010101001… |
… | …1111001100011100 |
3 | 10120122122021100020 |
4 | 1102222133030130 |
5 | 10320014311112 |
6 | 345341232140 |
7 | 46240124256 |
oct | 12252371434 |
9 | 3518567306 |
10 | 1386869532 |
11 | 651940674 |
12 | 328562650 |
13 | 191432079 |
14 | d2294cd6 |
15 | 81b4e48c |
hex | 52a9f31c |
1386869532 has 24 divisors (see below), whose sum is σ = 3236671872. Its totient is φ = 462198000.
The previous prime is 1386869531. The next prime is 1386869543. The reversal of 1386869532 is 2359686831.
It is a happy number.
1386869532 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1386869531) 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, 81657 + ... + 97167.
It is an arithmetic number, because the mean of its divisors is an integer number (134861328).
Almost surely, 21386869532 is an apocalyptic number.
1386869532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1386869532 is an abundant number, since it is smaller than the sum of its proper divisors (1849802340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1386869532 is a wasteful number, since it uses less digits than its factorization.
1386869532 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22969 (or 22967 counting only the distinct ones).
The product of its digits is 1866240, while the sum is 51.
The square root of 1386869532 is about 37240.6972544822. The cubic root of 1386869532 is about 1115.1805915804.
The spelling of 1386869532 in words is "one billion, three hundred eighty-six million, eight hundred sixty-nine thousand, five hundred thirty-two".
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