Base | Representation |
---|---|
bin | 1111100111100… |
… | …01010110101011 |
3 | 100010112002200201 |
4 | 13303301112223 |
5 | 232014341021 |
6 | 21000013031 |
7 | 3150404134 |
oct | 763612653 |
9 | 303462621 |
10 | 131012011 |
11 | 67a53299 |
12 | 37a61177 |
13 | 211b1300 |
14 | 13584c8b |
15 | b77d591 |
hex | 7cf15ab |
131012011 has 12 divisors (see below), whose sum is σ = 149335320. Its totient is φ = 114566400.
The previous prime is 131012009. The next prime is 131012029. The reversal of 131012011 is 110210131.
It is not a de Polignac number, because 131012011 - 21 = 131012009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131012041) 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 11 ways as a sum of consecutive naturals, for example, 17190 + ... + 23611.
It is an arithmetic number, because the mean of its divisors is an integer number (12444610).
Almost surely, 2131012011 is an apocalyptic number.
131012011 is a deficient number, since it is larger than the sum of its proper divisors (18323309).
131012011 is a wasteful number, since it uses less digits than its factorization.
131012011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40846 (or 40833 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 10.
The square root of 131012011 is about 11446.0478332043. The cubic root of 131012011 is about 507.8908291972.
Adding to 131012011 its reverse (110210131), we get a palindrome (241222142).
It can be divided in two parts, 1310120 and 11, that added together give a palindrome (1310131).
The spelling of 131012011 in words is "one hundred thirty-one million, twelve thousand, eleven".
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