Base | Representation |
---|---|
bin | 11010001110100… |
… | …01011000100100 |
3 | 120022222200000021 |
4 | 31013101120210 |
5 | 422310310040 |
6 | 33455324524 |
7 | 5311024426 |
oct | 1507213044 |
9 | 508880007 |
10 | 220010020 |
11 | 10320a86a |
12 | 61820744 |
13 | 36772159 |
14 | 21310816 |
15 | 144ad24a |
hex | d1d1624 |
220010020 has 48 divisors (see below), whose sum is σ = 468534528. Its totient is φ = 86774400.
The previous prime is 220009963. The next prime is 220010033. The reversal of 220010020 is 20010022.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 220009985 and 220010012.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794122 + ... + 794398.
It is an arithmetic number, because the mean of its divisors is an integer number (9761136).
Almost surely, 2220010020 is an apocalyptic number.
220010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
220010020 is an abundant number, since it is smaller than the sum of its proper divisors (248524508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220010020 is a wasteful number, since it uses less digits than its factorization.
220010020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 700 (or 698 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 220010020 is about 14832.7347444765. The cubic root of 220010020 is about 603.6902385169.
Adding to 220010020 its reverse (20010022), we get a palindrome (240020042).
The spelling of 220010020 in words is "two hundred twenty million, ten thousand, twenty".
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