Base | Representation |
---|---|
bin | 11001111110001000… |
… | …10111010001110100 |
3 | 1022222201020022120100 |
4 | 30333010113101310 |
5 | 212023402313140 |
6 | 10223315034100 |
7 | 1002343430103 |
oct | 147704272164 |
9 | 38881208510 |
10 | 13943010420 |
11 | 5a05514109 |
12 | 285159b930 |
13 | 1412877231 |
14 | 963ac003a |
15 | 569127530 |
hex | 33f117474 |
13943010420 has 72 divisors (see below), whose sum is σ = 42427390824. Its totient is φ = 3706391808.
The previous prime is 13943010313. The next prime is 13943010511. The reversal of 13943010420 is 2401034931.
It can be written as a sum of positive squares in 4 ways, for example, as 597215844 + 13345794576 = 24438^2 + 115524^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65119 + ... + 179238.
It is an arithmetic number, because the mean of its divisors is an integer number (589269317).
Almost surely, 213943010420 is an apocalyptic number.
13943010420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13943010420 is an abundant number, since it is smaller than the sum of its proper divisors (28484380404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13943010420 is a wasteful number, since it uses less digits than its factorization.
13943010420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 244689 (or 244684 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The spelling of 13943010420 in words is "thirteen billion, nine hundred forty-three million, ten thousand, four hundred twenty".
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