Base | Representation |
---|---|
bin | 100100010111100… |
… | …0111010100101011 |
3 | 10011001020012001100 |
4 | 1020233013110223 |
5 | 4444344412230 |
6 | 321031252443 |
7 | 42145316010 |
oct | 11057072453 |
9 | 3131205040 |
10 | 1220310315 |
11 | 576919224 |
12 | 2a081a123 |
13 | 165a85c13 |
14 | b80d9707 |
15 | 721ed660 |
hex | 48bc752b |
1220310315 has 48 divisors (see below), whose sum is σ = 2425295808. Its totient is φ = 556028928.
The previous prime is 1220310293. The next prime is 1220310349. The reversal of 1220310315 is 5130130221.
1220310315 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1220310315 - 26 = 1220310251 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92407 + ... + 104783.
It is an arithmetic number, because the mean of its divisors is an integer number (50526996).
Almost surely, 21220310315 is an apocalyptic number.
1220310315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1220310315 is a deficient number, since it is larger than the sum of its proper divisors (1204985493).
1220310315 is a wasteful number, since it uses less digits than its factorization.
1220310315 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12708 (or 12705 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 18.
The square root of 1220310315 is about 34932.9402570124. The cubic root of 1220310315 is about 1068.6203183166.
Adding to 1220310315 its reverse (5130130221), we get a palindrome (6350440536).
The spelling of 1220310315 in words is "one billion, two hundred twenty million, three hundred ten thousand, three hundred fifteen".
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