Base | Representation |
---|---|
bin | 11101001011011011… |
… | …000010011101100011 |
3 | 2222212110012112110221 |
4 | 131023123002131203 |
5 | 1003131004301433 |
6 | 22220505503511 |
7 | 2156250611620 |
oct | 351333023543 |
9 | 88773175427 |
10 | 31330150243 |
11 | 12318064657 |
12 | 60a44a1b97 |
13 | 2c53b28552 |
14 | 1732d77347 |
15 | c357c272d |
hex | 74b6c2763 |
31330150243 has 8 divisors (see below), whose sum is σ = 35877074688. Its totient is φ = 26801022984.
The previous prime is 31330150237. The next prime is 31330150273. The reversal of 31330150243 is 34205103313.
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 31330150243 - 25 = 31330150211 is a prime.
It is a super-3 number, since 3×313301502433 (a number of 32 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (31330150273) 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, 4445521 + ... + 4452562.
It is an arithmetic number, because the mean of its divisors is an integer number (4484634336).
Almost surely, 231330150243 is an apocalyptic number.
31330150243 is a deficient number, since it is larger than the sum of its proper divisors (4546924445).
31330150243 is an equidigital number, since it uses as much as digits as its factorization.
31330150243 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8898593.
The product of its (nonzero) digits is 3240, while the sum is 25.
Adding to 31330150243 its reverse (34205103313), we get a palindrome (65535253556).
The spelling of 31330150243 in words is "thirty-one billion, three hundred thirty million, one hundred fifty thousand, two hundred forty-three".
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