Base | Representation |
---|---|
bin | 1101101100111011110001… |
… | …01100001110100010011001 |
3 | 10221200111221120002211202101 |
4 | 12312131320230032202121 |
5 | 12422132214413104431 |
6 | 144030031440403401 |
7 | 6226623505626253 |
oct | 666357054164231 |
9 | 127614846084671 |
10 | 30131220441241 |
11 | 9667640468807 |
12 | 3467770916561 |
13 | 13a749211445a |
14 | 762504986cd3 |
15 | 373baed64961 |
hex | 1b6778b0e899 |
30131220441241 has 4 divisors (see below), whose sum is σ = 30131369961984. Its totient is φ = 30131070920500.
The previous prime is 30131220441221. The next prime is 30131220441247. The reversal of 30131220441241 is 14214402213103.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30131220441241 - 239 = 29581464627353 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30131220441247) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74457685 + ... + 74861266.
It is an arithmetic number, because the mean of its divisors is an integer number (7532842490496).
Almost surely, 230131220441241 is an apocalyptic number.
It is an amenable number.
30131220441241 is a deficient number, since it is larger than the sum of its proper divisors (149520743).
30131220441241 is a wasteful number, since it uses less digits than its factorization.
30131220441241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149520742.
The product of its (nonzero) digits is 4608, while the sum is 28.
Adding to 30131220441241 its reverse (14214402213103), we get a palindrome (44345622654344).
The spelling of 30131220441241 in words is "thirty trillion, one hundred thirty-one billion, two hundred twenty million, four hundred forty-one thousand, two hundred forty-one".
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