Base | Representation |
---|---|
bin | 111101001001000110… |
… | …1111000011000000011 |
3 | 110112220200010100211102 |
4 | 1322102031320120003 |
5 | 4122401321144303 |
6 | 140152552205015 |
7 | 12325534462145 |
oct | 1722215703003 |
9 | 415820110742 |
10 | 131302131203 |
11 | 507596a2621 |
12 | 2154499976b |
13 | c4c68a7879 |
14 | 64d83c2c95 |
15 | 3637325288 |
hex | 1e92378603 |
131302131203 has 4 divisors (see below), whose sum is σ = 131532082968. Its totient is φ = 131072179440.
The previous prime is 131302131197. The next prime is 131302131221. The reversal of 131302131203 is 302131203131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302131203131 = 2251 ⋅134220881.
It is a cyclic number.
It is not a de Polignac number, because 131302131203 - 24 = 131302131187 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131302131263) 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 3 ways as a sum of consecutive naturals, for example, 114975026 + ... + 114976167.
It is an arithmetic number, because the mean of its divisors is an integer number (32883020742).
Almost surely, 2131302131203 is an apocalyptic number.
131302131203 is a deficient number, since it is larger than the sum of its proper divisors (229951765).
131302131203 is an equidigital number, since it uses as much as digits as its factorization.
131302131203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 229951764.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 131302131203 its reverse (302131203131), we get a palindrome (433433334334).
The spelling of 131302131203 in words is "one hundred thirty-one billion, three hundred two million, one hundred thirty-one thousand, two hundred three".
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