Base | Representation |
---|---|
bin | 11101001010110101… |
… | …100101000000001110 |
3 | 2222211202201121222122 |
4 | 131022311211000032 |
5 | 1003121001032004 |
6 | 22215515212542 |
7 | 2156101262123 |
oct | 351265450016 |
9 | 88752647878 |
10 | 31320330254 |
11 | 12312567764 |
12 | 60a1147152 |
13 | 2c51a9a8c5 |
14 | 173193c74a |
15 | c349d2cbe |
hex | 74ad6500e |
31320330254 has 16 divisors (see below), whose sum is σ = 49678828416. Its totient is φ = 14785363200.
The previous prime is 31320330253. The next prime is 31320330259. The reversal of 31320330254 is 45203302313.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31320330253) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6158027 + ... + 6163110.
It is an arithmetic number, because the mean of its divisors is an integer number (3104926776).
Almost surely, 231320330254 is an apocalyptic number.
31320330254 is a deficient number, since it is larger than the sum of its proper divisors (18358498162).
31320330254 is a wasteful number, since it uses less digits than its factorization.
31320330254 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12321211.
The product of its (nonzero) digits is 6480, while the sum is 26.
Adding to 31320330254 its reverse (45203302313), we get a palindrome (76523632567).
The spelling of 31320330254 in words is "thirty-one billion, three hundred twenty million, three hundred thirty thousand, two hundred fifty-four".
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