Base | Representation |
---|---|
bin | 1101101111100001010101… |
… | …11111101000110100111111 |
3 | 10222000000101111210021102200 |
4 | 12313300222333220310333 |
5 | 12430111241433020111 |
6 | 144134532154322543 |
7 | 6236221346032605 |
oct | 667605277506477 |
9 | 128000344707380 |
10 | 30220111220031 |
11 | 96a1305a46557 |
12 | 3480a3a129453 |
13 | 13b298a1a7805 |
14 | 766938425875 |
15 | 376163b38256 |
hex | 1b7c2afe8d3f |
30220111220031 has 12 divisors (see below), whose sum is σ = 43652019936408. Its totient is φ = 20146395502224.
The previous prime is 30220111220017. The next prime is 30220111220141. The reversal of 30220111220031 is 13002211102203.
30220111220031 is a `hidden beast` number, since 302 + 2 + 0 + 111 + 220 + 0 + 31 = 666.
It is not a de Polignac number, because 30220111220031 - 210 = 30220111219007 is a prime.
It is a super-2 number, since 2×302201112200312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30220111219986 and 30220111220013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30220111220531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28221100 + ... + 29272353.
It is an arithmetic number, because the mean of its divisors is an integer number (3637668328034).
Almost surely, 230220111220031 is an apocalyptic number.
30220111220031 is a deficient number, since it is larger than the sum of its proper divisors (13431908716377).
30220111220031 is a wasteful number, since it uses less digits than its factorization.
30220111220031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57551862 (or 57551859 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 30220111220031 its reverse (13002211102203), we get a palindrome (43222322322234).
The spelling of 30220111220031 in words is "thirty trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty thousand, thirty-one".
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