Base | Representation |
---|---|
bin | 1111101000001… |
… | …11001001000111 |
3 | 100010200122010001 |
4 | 13310013021013 |
5 | 232030220010 |
6 | 21001542131 |
7 | 3151225255 |
oct | 764071107 |
9 | 303618101 |
10 | 131101255 |
11 | 6800434a |
12 | 37aa4947 |
13 | 21212b0c |
14 | 135a95d5 |
15 | b799c3a |
hex | 7d07247 |
131101255 has 4 divisors (see below), whose sum is σ = 157321512. Its totient is φ = 104881000.
The previous prime is 131101253. The next prime is 131101259. The reversal of 131101255 is 552101131.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 131101255 - 21 = 131101253 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 (131101253) 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, 13110121 + ... + 13110130.
It is an arithmetic number, because the mean of its divisors is an integer number (39330378).
Almost surely, 2131101255 is an apocalyptic number.
131101255 is a deficient number, since it is larger than the sum of its proper divisors (26220257).
131101255 is an equidigital number, since it uses as much as digits as its factorization.
131101255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26220256.
The product of its (nonzero) digits is 150, while the sum is 19.
The square root of 131101255 is about 11449.9456330587. The cubic root of 131101255 is about 508.0061263134.
Adding to 131101255 its reverse (552101131), we get a palindrome (683202386).
It can be divided in two parts, 13110 and 1255, that added together give a triangular number (14365 = T169).
The spelling of 131101255 in words is "one hundred thirty-one million, one hundred one thousand, two hundred fifty-five".
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