Base | Representation |
---|---|
bin | 10001110000001111011… |
… | …110010010011101010111 |
3 | 11022122010000021022001100 |
4 | 101300033132102131113 |
5 | 124442110224411411 |
6 | 2332250231401143 |
7 | 154100326346655 |
oct | 21601736223527 |
9 | 4278100238040 |
10 | 1220030310231 |
11 | 430459338697 |
12 | 1785498231b3 |
13 | 8b082345895 |
14 | 4309a85ddd5 |
15 | 21b08442456 |
hex | 11c0f792757 |
1220030310231 has 48 divisors (see below), whose sum is σ = 1850698886400. Its totient is φ = 772999979136.
The previous prime is 1220030310223. The next prime is 1220030310313. The reversal of 1220030310231 is 1320130300221.
1220030310231 is a `hidden beast` number, since 122 + 0 + 0 + 3 + 0 + 310 + 231 = 666.
It is not a de Polignac number, because 1220030310231 - 23 = 1220030310223 is a prime.
It is a super-2 number, since 2×12200303102312 (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 (1220030310931) 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, 46636651 + ... + 46662803.
It is an arithmetic number, because the mean of its divisors is an integer number (38556226800).
Almost surely, 21220030310231 is an apocalyptic number.
1220030310231 is a deficient number, since it is larger than the sum of its proper divisors (630668576169).
1220030310231 is a wasteful number, since it uses less digits than its factorization.
1220030310231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27620 (or 27617 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 1220030310231 its reverse (1320130300221), we get a palindrome (2540160610452).
The spelling of 1220030310231 in words is "one trillion, two hundred twenty billion, thirty million, three hundred ten thousand, two hundred thirty-one".
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