Base | Representation |
---|---|
bin | 100110111100… |
… | …1001101010101 |
3 | 1102102102011120 |
4 | 1031321031111 |
5 | 20211410123 |
6 | 2005354153 |
7 | 335363550 |
oct | 115711525 |
9 | 42372146 |
10 | 20419413 |
11 | 10587453 |
12 | 6a08959 |
13 | 42cc2c1 |
14 | 29d7697 |
15 | 1bd52e3 |
hex | 1379355 |
20419413 has 8 divisors (see below), whose sum is σ = 31115328. Its totient is φ = 11668224.
The previous prime is 20419403. The next prime is 20419417. The reversal of 20419413 is 31491402.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20419413 - 25 = 20419381 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20419417) 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, 486156 + ... + 486197.
It is an arithmetic number, because the mean of its divisors is an integer number (3889416).
Almost surely, 220419413 is an apocalyptic number.
It is an amenable number.
20419413 is a deficient number, since it is larger than the sum of its proper divisors (10695915).
20419413 is an equidigital number, since it uses as much as digits as its factorization.
20419413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 972363.
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 20419413 is about 4518.7844604495. The cubic root of 20419413 is about 273.3260872889.
The spelling of 20419413 in words is "twenty million, four hundred nineteen thousand, four hundred thirteen".
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