Base | Representation |
---|---|
bin | 100111000100… |
… | …0000000100101 |
3 | 1102112111022220 |
4 | 1032020000211 |
5 | 20220330122 |
6 | 2010542553 |
7 | 336035364 |
oct | 116100045 |
9 | 42474286 |
10 | 20480037 |
11 | 10618a56 |
12 | 6a37a59 |
13 | 4320a86 |
14 | 2a117db |
15 | 1be825c |
hex | 1388025 |
20480037 has 8 divisors (see below), whose sum is σ = 27329280. Its totient is φ = 13642080.
The previous prime is 20480029. The next prime is 20480041. The reversal of 20480037 is 73008402.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20480037 - 23 = 20480029 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20479989 and 20480016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20480027) 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, 3337 + ... + 7217.
It is an arithmetic number, because the mean of its divisors is an integer number (3416160).
Almost surely, 220480037 is an apocalyptic number.
It is an amenable number.
20480037 is a deficient number, since it is larger than the sum of its proper divisors (6849243).
20480037 is a wasteful number, since it uses less digits than its factorization.
20480037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5643.
The product of its (nonzero) digits is 1344, while the sum is 24.
The square root of 20480037 is about 4525.4874875531. The cubic root of 20480037 is about 273.5963162315.
Adding to 20480037 its reverse (73008402), we get a palindrome (93488439).
The spelling of 20480037 in words is "twenty million, four hundred eighty thousand, thirty-seven".
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