Base | Representation |
---|---|
bin | 11001000010010… |
… | …111010001011111 |
3 | 1002021101202021222 |
4 | 121002113101133 |
5 | 1330013100030 |
6 | 105403043555 |
7 | 13260236420 |
oct | 3102272137 |
9 | 1067352258 |
10 | 420050015 |
11 | 1a611a880 |
12 | b88105bb |
13 | 69041708 |
14 | 3db03647 |
15 | 26d243e5 |
hex | 1909745f |
420050015 has 32 divisors (see below), whose sum is σ = 643078656. Its totient is φ = 255749760.
The previous prime is 420050003. The next prime is 420050047. The reversal of 420050015 is 510050024.
It is not a de Polignac number, because 420050015 - 24 = 420049999 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 420049975 and 420050002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3869 + ... + 29241.
It is an arithmetic number, because the mean of its divisors is an integer number (20096208).
Almost surely, 2420050015 is an apocalyptic number.
420050015 is a deficient number, since it is larger than the sum of its proper divisors (223028641).
420050015 is a wasteful number, since it uses less digits than its factorization.
420050015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25439.
The product of its (nonzero) digits is 200, while the sum is 17.
The square root of 420050015 is about 20495.1217366475. The cubic root of 420050015 is about 748.9169642048.
Subtracting 420050015 from its reverse (510050024), we obtain a palindrome (90000009).
The spelling of 420050015 in words is "four hundred twenty million, fifty thousand, fifteen".
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