Base | Representation |
---|---|
bin | 10001110000100000010… |
… | …101000111110111001111 |
3 | 11022122211201102112101220 |
4 | 101300200111013313033 |
5 | 124443200124321312 |
6 | 2332334253134423 |
7 | 154110332242566 |
oct | 21604025076717 |
9 | 4278751375356 |
10 | 1220313120207 |
11 | 430593a40a45 |
12 | 17860848a413 |
13 | 8b0c8b0526c |
14 | 430c623abdd |
15 | 21b231a7c8c |
hex | 11c20547dcf |
1220313120207 has 32 divisors (see below), whose sum is σ = 1656102470400. Its totient is φ = 799174591488.
The previous prime is 1220313120193. The next prime is 1220313120211. The reversal of 1220313120207 is 7020213130221.
It is a happy number.
It is not a de Polignac number, because 1220313120207 - 215 = 1220313087439 is a prime.
It is a super-2 number, since 2×12203131202072 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220313120007) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28471269 + ... + 28514097.
It is an arithmetic number, because the mean of its divisors is an integer number (51753202200).
Almost surely, 21220313120207 is an apocalyptic number.
1220313120207 is a deficient number, since it is larger than the sum of its proper divisors (435789350193).
1220313120207 is a wasteful number, since it uses less digits than its factorization.
1220313120207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43655.
The product of its (nonzero) digits is 1008, while the sum is 24.
Adding to 1220313120207 its reverse (7020213130221), we get a palindrome (8240526250428).
The spelling of 1220313120207 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, one hundred twenty thousand, two hundred seven".
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