Base | Representation |
---|---|
bin | 10010101010100… |
… | …000000011101001 |
3 | 210211012201022101 |
4 | 102222200003221 |
5 | 1120130144431 |
6 | 51023253401 |
7 | 10521400033 |
oct | 2252400351 |
9 | 724181271 |
10 | 313131241 |
11 | 150833155 |
12 | 88a4a261 |
13 | 4cb47977 |
14 | 2d830c53 |
15 | 1c754961 |
hex | 12aa00e9 |
313131241 has 8 divisors (see below), whose sum is σ = 324161280. Its totient is φ = 302116752.
The previous prime is 313131193. The next prime is 313131251. The reversal of 313131241 is 142131313.
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 313131241 - 29 = 313130729 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (313131251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49906 + ... + 55828.
It is an arithmetic number, because the mean of its divisors is an integer number (40520160).
Almost surely, 2313131241 is an apocalyptic number.
It is an amenable number.
313131241 is a deficient number, since it is larger than the sum of its proper divisors (11030039).
313131241 is a wasteful number, since it uses less digits than its factorization.
313131241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7775.
The product of its digits is 216, while the sum is 19.
The square root of 313131241 is about 17695.5147141868. The cubic root of 313131241 is about 679.0610172890.
Adding to 313131241 its reverse (142131313), we get a palindrome (455262554).
The spelling of 313131241 in words is "three hundred thirteen million, one hundred thirty-one thousand, two hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •