Base | Representation |
---|---|
bin | 100110111100… |
… | …0000100011111 |
3 | 1102102011202220 |
4 | 1031320010133 |
5 | 20211233001 |
6 | 2005320423 |
7 | 335344140 |
oct | 115700437 |
9 | 42364686 |
10 | 20414751 |
11 | 105839a5 |
12 | 6a06113 |
13 | 42ca146 |
14 | 29d5ac7 |
15 | 1bd3c36 |
hex | 137811f |
20414751 has 8 divisors (see below), whose sum is σ = 31108224. Its totient is φ = 11665560.
The previous prime is 20414741. The next prime is 20414789. The reversal of 20414751 is 15741402.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20414751 - 211 = 20412703 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20414741) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486045 + ... + 486086.
It is an arithmetic number, because the mean of its divisors is an integer number (3888528).
Almost surely, 220414751 is an apocalyptic number.
20414751 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20414751 is a deficient number, since it is larger than the sum of its proper divisors (10693473).
20414751 is an equidigital number, since it uses as much as digits as its factorization.
20414751 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 972141.
The product of its (nonzero) digits is 1120, while the sum is 24.
The square root of 20414751 is about 4518.2685843141. The cubic root of 20414751 is about 273.3052844838.
The spelling of 20414751 in words is "twenty million, four hundred fourteen thousand, seven hundred fifty-one".
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