Base | Representation |
---|---|
bin | 100100010111100… |
… | …1000000000101010 |
3 | 10011001020022220121 |
4 | 1020233020000222 |
5 | 4444400010010 |
6 | 321031313454 |
7 | 42145330141 |
oct | 11057100052 |
9 | 3131208817 |
10 | 1220313130 |
11 | 576920353 |
12 | 2a081b88a |
13 | 165a8729a |
14 | b80da758 |
15 | 721ee3da |
hex | 48bc802a |
1220313130 has 16 divisors (see below), whose sum is σ = 2196974304. Its totient is φ = 488034000.
The previous prime is 1220313121. The next prime is 1220313131. The reversal of 1220313130 is 313130221.
It is not an unprimeable number, because it can be changed into a prime (1220313131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78505 + ... + 92755.
It is an arithmetic number, because the mean of its divisors is an integer number (137310894).
Almost surely, 21220313130 is an apocalyptic number.
1220313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220313130 is a deficient number, since it is larger than the sum of its proper divisors (976661174).
1220313130 is a wasteful number, since it uses less digits than its factorization.
1220313130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22821.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1220313130 is about 34932.9805484731. The cubic root of 1220313130 is about 1068.6211400103.
Adding to 1220313130 its reverse (313130221), we get a palindrome (1533443351).
The spelling of 1220313130 in words is "one billion, two hundred twenty million, three hundred thirteen thousand, one hundred thirty".
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