Base | Representation |
---|---|
bin | 100100101011… |
… | …0110100111101 |
3 | 1100011222121201 |
4 | 1021112310331 |
5 | 14410330023 |
6 | 1524055501 |
7 | 322311115 |
oct | 111266475 |
9 | 40158551 |
10 | 19230013 |
11 | a944880 |
12 | 6534591 |
13 | 3ca3b0a |
14 | 27a8045 |
15 | 1a4cbad |
hex | 1256d3d |
19230013 has 8 divisors (see below), whose sum is σ = 21655296. Its totient is φ = 16917600.
The previous prime is 19230007. The next prime is 19230019. The reversal of 19230013 is 31003291.
It is an interprime number because it is at equal distance from previous prime (19230007) and next prime (19230019).
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 19230013 - 25 = 19229981 is a prime.
It is a super-3 number, since 3×192300133 (a number of 23 digits) contains 333 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 (19230019) 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, 27856 + ... + 28537.
It is an arithmetic number, because the mean of its divisors is an integer number (2706912).
Almost surely, 219230013 is an apocalyptic number.
It is an amenable number.
19230013 is a deficient number, since it is larger than the sum of its proper divisors (2425283).
19230013 is a wasteful number, since it uses less digits than its factorization.
19230013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56435.
The product of its (nonzero) digits is 162, while the sum is 19.
The square root of 19230013 is about 4385.2038721136. The cubic root of 19230013 is about 267.9126330277.
It can be divided in two parts, 19 and 230013, that added together give a palindrome (230032).
The spelling of 19230013 in words is "nineteen million, two hundred thirty thousand, thirteen".
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