Base | Representation |
---|---|
bin | 111101000001000000… |
… | …0101101010000000001 |
3 | 110112012201111222101020 |
4 | 1322002000231100001 |
5 | 4121322220223210 |
6 | 140110000500053 |
7 | 12316023453144 |
oct | 1720200552001 |
9 | 415181458336 |
10 | 131030242305 |
11 | 5062a179456 |
12 | 2148991a629 |
13 | c482470071 |
14 | 64b024a05b |
15 | 361d51a770 |
hex | 1e8202d401 |
131030242305 has 8 divisors (see below), whose sum is σ = 209648387712. Its totient is φ = 69882795888.
The previous prime is 131030242303. The next prime is 131030242313. The reversal of 131030242305 is 503242030131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131030242305 - 21 = 131030242303 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131030242303) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367674729 + ... + 4367674758.
It is an arithmetic number, because the mean of its divisors is an integer number (26206048464).
Almost surely, 2131030242305 is an apocalyptic number.
131030242305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
131030242305 is a deficient number, since it is larger than the sum of its proper divisors (78618145407).
131030242305 is an equidigital number, since it uses as much as digits as its factorization.
131030242305 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8735349495.
The product of its (nonzero) digits is 2160, while the sum is 24.
Adding to 131030242305 its reverse (503242030131), we get a palindrome (634272272436).
The spelling of 131030242305 in words is "one hundred thirty-one billion, thirty million, two hundred forty-two thousand, three hundred five".
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