Base | Representation |
---|---|
bin | 11101000101011110… |
… | …001001001111000001 |
3 | 2222121111022200020022 |
4 | 131011132021033001 |
5 | 1002424424113441 |
6 | 22202541423225 |
7 | 2153626115405 |
oct | 350536111701 |
9 | 88544280208 |
10 | 31230301121 |
11 | 12276766518 |
12 | 6076b6ab15 |
13 | 2c39238626 |
14 | 17239c5105 |
15 | c2bb4c84b |
hex | 7457893c1 |
31230301121 has 8 divisors (see below), whose sum is σ = 33193168320. Its totient is φ = 29299350672.
The previous prime is 31230301103. The next prime is 31230301127. The reversal of 31230301121 is 12110303213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31230301121 - 214 = 31230284737 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31230301121.
It is not an unprimeable number, because it can be changed into a prime (31230301127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7977170 + ... + 7981083.
It is an arithmetic number, because the mean of its divisors is an integer number (4149146040).
Almost surely, 231230301121 is an apocalyptic number.
It is an amenable number.
31230301121 is a deficient number, since it is larger than the sum of its proper divisors (1962867199).
31230301121 is a wasteful number, since it uses less digits than its factorization.
31230301121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15958375.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 31230301121 its reverse (12110303213), we get a palindrome (43340604334).
The spelling of 31230301121 in words is "thirty-one billion, two hundred thirty million, three hundred one thousand, one hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •