Base | Representation |
---|---|
bin | 1111101000010… |
… | …11110010111011 |
3 | 100010201121020222 |
4 | 13310023302323 |
5 | 232031322230 |
6 | 21002210255 |
7 | 3151334654 |
oct | 764136273 |
9 | 303647228 |
10 | 131120315 |
11 | 680176a7 |
12 | 37ab398b |
13 | 2121b6b1 |
14 | 135b252b |
15 | b7a06e5 |
hex | 7d0bcbb |
131120315 has 8 divisors (see below), whose sum is σ = 159560928. Its totient is φ = 103418560.
The previous prime is 131120257. The next prime is 131120413. The reversal of 131120315 is 513021131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131120315 - 210 = 131119291 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131120293 and 131120302.
It is an unprimeable number.
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, 184322 + ... + 185031.
It is an arithmetic number, because the mean of its divisors is an integer number (19945116).
Almost surely, 2131120315 is an apocalyptic number.
131120315 is a deficient number, since it is larger than the sum of its proper divisors (28440613).
131120315 is an equidigital number, since it uses as much as digits as its factorization.
131120315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 369429.
The product of its (nonzero) digits is 90, while the sum is 17.
The square root of 131120315 is about 11450.7779211720. Note that the first 3 decimals coincide. The cubic root of 131120315 is about 508.0307437425.
Adding to 131120315 its reverse (513021131), we get a palindrome (644141446).
The spelling of 131120315 in words is "one hundred thirty-one million, one hundred twenty thousand, three hundred fifteen".
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