Base | Representation |
---|---|
bin | 100100100110100… |
… | …1111111111010010 |
3 | 10011121002112120002 |
4 | 1021031033333102 |
5 | 10003410211010 |
6 | 321512450002 |
7 | 42302420360 |
oct | 11115177722 |
9 | 3147075502 |
10 | 1228210130 |
11 | 5803244a4 |
12 | 2a33a9902 |
13 | 1675c0874 |
14 | b9194630 |
15 | 72c5e1a5 |
hex | 4934ffd2 |
1228210130 has 16 divisors (see below), whose sum is σ = 2526603840. Its totient is φ = 421100592.
The previous prime is 1228210121. The next prime is 1228210163. The reversal of 1228210130 is 310128221.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8772860 + ... + 8772999.
It is an arithmetic number, because the mean of its divisors is an integer number (157912740).
Almost surely, 21228210130 is an apocalyptic number.
1228210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1228210130 is an abundant number, since it is smaller than the sum of its proper divisors (1298393710).
1228210130 is a wasteful number, since it uses less digits than its factorization.
1228210130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17545873.
The product of its (nonzero) digits is 192, while the sum is 20.
The square root of 1228210130 is about 35045.8289957593. The cubic root of 1228210130 is about 1070.9213044993.
Adding to 1228210130 its reverse (310128221), we get a palindrome (1538338351).
The spelling of 1228210130 in words is "one billion, two hundred twenty-eight million, two hundred ten thousand, one hundred thirty".
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