Base | Representation |
---|---|
bin | 100100010111100… |
… | …0100110110110101 |
3 | 10011001012200012012 |
4 | 1020233010312311 |
5 | 4444344101323 |
6 | 321031134005 |
7 | 42145244366 |
oct | 11057046665 |
9 | 3131180165 |
10 | 1220300213 |
11 | 576911680 |
12 | 2a0814305 |
13 | 165a81442 |
14 | b80d5b6d |
15 | 721ea678 |
hex | 48bc4db5 |
1220300213 has 48 divisors (see below), whose sum is σ = 1516879872. Its totient is φ = 970596000.
The previous prime is 1220300197. The next prime is 1220300227. The reversal of 1220300213 is 3120030221.
It is a happy number.
It is not a de Polignac number, because 1220300213 - 24 = 1220300197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220300233) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2831108 + ... + 2831538.
It is an arithmetic number, because the mean of its divisors is an integer number (31601664).
Almost surely, 21220300213 is an apocalyptic number.
It is an amenable number.
1220300213 is a deficient number, since it is larger than the sum of its proper divisors (296579659).
1220300213 is a wasteful number, since it uses less digits than its factorization.
1220300213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 534 (or 515 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 1220300213 is about 34932.7956653916. The cubic root of 1220300213 is about 1068.6173695496.
Adding to 1220300213 its reverse (3120030221), we get a palindrome (4340330434).
The spelling of 1220300213 in words is "one billion, two hundred twenty million, three hundred thousand, two hundred thirteen".
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