Base | Representation |
---|---|
bin | 11101000110010010… |
… | …011111100110110001 |
3 | 2222122110010212211000 |
4 | 131012102133212301 |
5 | 1002441432233431 |
6 | 22204151512213 |
7 | 2154153552453 |
oct | 350622374661 |
9 | 88573125730 |
10 | 31244024241 |
11 | 12283489941 |
12 | 607b688669 |
13 | 2c3c031a11 |
14 | 17257582d3 |
15 | c2ce5d9e6 |
hex | 74649f9b1 |
31244024241 has 32 divisors (see below), whose sum is σ = 47020176000. Its totient is φ = 20501498304.
The previous prime is 31244024143. The next prime is 31244024249. The reversal of 31244024241 is 14242044213.
31244024241 is a `hidden beast` number, since 3 + 12 + 4 + 402 + 4 + 241 = 666.
It is not a de Polignac number, because 31244024241 - 211 = 31244022193 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (31244024249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576915 + ... + 628743.
It is an arithmetic number, because the mean of its divisors is an integer number (1469380500).
Almost surely, 231244024241 is an apocalyptic number.
It is an amenable number.
31244024241 is a deficient number, since it is larger than the sum of its proper divisors (15776151759).
31244024241 is a wasteful number, since it uses less digits than its factorization.
31244024241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52190 (or 52184 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 27.
Adding to 31244024241 its reverse (14242044213), we get a palindrome (45486068454).
The spelling of 31244024241 in words is "thirty-one billion, two hundred forty-four million, twenty-four thousand, two hundred forty-one".
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