Base | Representation |
---|---|
bin | 1100110100100100010 |
3 | 210100022101 |
4 | 1212210202 |
5 | 101421010 |
6 | 13001014 |
7 | 3366604 |
oct | 1464442 |
9 | 710271 |
10 | 420130 |
11 | 267717 |
12 | 18316a |
13 | 1192c9 |
14 | ad174 |
15 | 8473a |
hex | 66922 |
420130 has 8 divisors (see below), whose sum is σ = 756252. Its totient is φ = 168048.
The previous prime is 420103. The next prime is 420149. The reversal of 420130 is 31024.
It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 1521 = 647^2 + 39^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 42013 = 420130 / (4 + 2 + 0 + 1 + 3 + 0).
It is an unprimeable number.
420130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20997 + ... + 21016.
2420130 is an apocalyptic number.
420130 is a deficient number, since it is larger than the sum of its proper divisors (336122).
420130 is a wasteful number, since it uses less digits than its factorization.
420130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42020.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 420130 is about 648.1743592584. The cubic root of 420130 is about 74.8964496895.
Adding to 420130 its reverse (31024), we get a palindrome (451154).
The spelling of 420130 in words is "four hundred twenty thousand, one hundred thirty".
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