Base | Representation |
---|---|
bin | 11100111101111001… |
… | …000001101010111101 |
3 | 2222021122000201122221 |
4 | 130331321001222331 |
5 | 1002144400132201 |
6 | 22142200005341 |
7 | 2150523150115 |
oct | 347571015275 |
9 | 88248021587 |
10 | 31103130301 |
11 | 122109a7171 |
12 | 6040460851 |
13 | 2c18aa0819 |
14 | 1710b60045 |
15 | c208cc4a1 |
hex | 73de41abd |
31103130301 has 4 divisors (see below), whose sum is σ = 31104196704. Its totient is φ = 31102063900.
The previous prime is 31103130281. The next prime is 31103130337. The reversal of 31103130301 is 10303130113.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10303130113 = 1559 ⋅6608807.
It is a cyclic number.
It is not a de Polignac number, because 31103130301 - 225 = 31069575869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31103130371) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488185 + ... + 548206.
It is an arithmetic number, because the mean of its divisors is an integer number (7776049176).
Almost surely, 231103130301 is an apocalyptic number.
It is an amenable number.
31103130301 is a deficient number, since it is larger than the sum of its proper divisors (1066403).
31103130301 is a wasteful number, since it uses less digits than its factorization.
31103130301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1066402.
The product of its (nonzero) digits is 81, while the sum is 16.
Adding to 31103130301 its reverse (10303130113), we get a palindrome (41406260414).
The spelling of 31103130301 in words is "thirty-one billion, one hundred three million, one hundred thirty thousand, three hundred one".
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