Base | Representation |
---|---|
bin | 11001110101010111… |
… | …00001000010001111 |
3 | 1022210120200220111001 |
4 | 30322223201002033 |
5 | 211401030403134 |
6 | 10212125041131 |
7 | 1000460565202 |
oct | 147253410217 |
9 | 38716626431 |
10 | 13869387919 |
11 | 59779a9472 |
12 | 28309b61a7 |
13 | 140053a91a |
14 | 957dd7939 |
15 | 562933414 |
hex | 33aae108f |
13869387919 has 8 divisors (see below), whose sum is σ = 14017501520. Its totient is φ = 13721654016.
The previous prime is 13869387907. The next prime is 13869387923. The reversal of 13869387919 is 91978396831.
13869387919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13869387919 - 217 = 13869256847 is a prime.
It is a super-2 number, since 2×138693879192 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13869387929) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21177 + ... + 167890.
It is an arithmetic number, because the mean of its divisors is an integer number (1752187690).
Almost surely, 213869387919 is an apocalyptic number.
13869387919 is a deficient number, since it is larger than the sum of its proper divisors (148113601).
13869387919 is a wasteful number, since it uses less digits than its factorization.
13869387919 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 189849.
The product of its digits is 17635968, while the sum is 64.
The spelling of 13869387919 in words is "thirteen billion, eight hundred sixty-nine million, three hundred eighty-seven thousand, nine hundred nineteen".
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