Base | Representation |
---|---|
bin | 1001000111000000111… |
… | …00000100011101110101 |
3 | 1002220220201112221122012 |
4 | 10203200130010131311 |
5 | 20112012243200041 |
6 | 355442554414005 |
7 | 31420336311053 |
oct | 4434034043565 |
9 | 1086821487565 |
10 | 313003100021 |
11 | 1108200a9857 |
12 | 507b4131305 |
13 | 23692a47631 |
14 | 112140771d3 |
15 | 821e0243eb |
hex | 48e0704775 |
313003100021 has 8 divisors (see below), whose sum is σ = 321967246944. Its totient is φ = 304162596720.
The previous prime is 313003100009. The next prime is 313003100029. The reversal of 313003100021 is 120001300313.
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 313003100021 - 218 = 313002837877 is a prime.
It is a super-2 number, since 2×3130031000212 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 313003099969 and 313003100005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313003100029) 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, 30905771 + ... + 30915896.
It is an arithmetic number, because the mean of its divisors is an integer number (40245905868).
Almost surely, 2313003100021 is an apocalyptic number.
It is an amenable number.
313003100021 is a deficient number, since it is larger than the sum of its proper divisors (8964146923).
313003100021 is an equidigital number, since it uses as much as digits as its factorization.
313003100021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61821811.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 313003100021 its reverse (120001300313), we get a palindrome (433004400334).
The spelling of 313003100021 in words is "three hundred thirteen billion, three million, one hundred thousand, twenty-one".
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