Base | Representation |
---|---|
bin | 11101001100010011… |
… | …001011101100101101 |
3 | 2222220110220021122021 |
4 | 131030103023230231 |
5 | 1003143241240031 |
6 | 22222153150141 |
7 | 2156516661136 |
oct | 351423135455 |
9 | 88813807567 |
10 | 31344868141 |
11 | 123253a7404 |
12 | 60a93bb351 |
13 | 2c56bac672 |
14 | 1734cc8c8d |
15 | c36c2d511 |
hex | 74c4cbb2d |
31344868141 has 8 divisors (see below), whose sum is σ = 33190257600. Its totient is φ = 29499653568.
The previous prime is 31344868111. The next prime is 31344868153. The reversal of 31344868141 is 14186844313.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31344868141 - 223 = 31336479533 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31344868111) 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 7 ways as a sum of consecutive naturals, for example, 578010 + ... + 629908.
It is an arithmetic number, because the mean of its divisors is an integer number (4148782200).
Almost surely, 231344868141 is an apocalyptic number.
It is an amenable number.
31344868141 is a deficient number, since it is larger than the sum of its proper divisors (1845389459).
31344868141 is a wasteful number, since it uses less digits than its factorization.
31344868141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87443.
The product of its digits is 221184, while the sum is 43.
The spelling of 31344868141 in words is "thirty-one billion, three hundred forty-four million, eight hundred sixty-eight thousand, one hundred forty-one".
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