Base | Representation |
---|---|
bin | 111101000111011000… |
… | …0100011010010110110 |
3 | 110112202121221122010010 |
4 | 1322032300203102312 |
5 | 4122241443023110 |
6 | 140143120441050 |
7 | 12324231352134 |
oct | 1721660432266 |
9 | 415677848103 |
10 | 131244111030 |
11 | 5072997416a |
12 | 21529479186 |
13 | c4b7871ac6 |
14 | 64d07dc754 |
15 | 36321b4020 |
hex | 1e8ec234b6 |
131244111030 has 64 divisors (see below), whose sum is σ = 319175106048. Its totient is φ = 34535692800.
The previous prime is 131244111001. The next prime is 131244111041. The reversal of 131244111030 is 30111442131.
It is a junction number, because it is equal to n+sod(n) for n = 131244110988 and 131244111006.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684255 + ... + 854805.
It is an arithmetic number, because the mean of its divisors is an integer number (4987111032).
Almost surely, 2131244111030 is an apocalyptic number.
131244111030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131244111030 is an abundant number, since it is smaller than the sum of its proper divisors (187930995018).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131244111030 is a wasteful number, since it uses less digits than its factorization.
131244111030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 170901.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 131244111030 its reverse (30111442131), we get a palindrome (161355553161).
The spelling of 131244111030 in words is "one hundred thirty-one billion, two hundred forty-four million, one hundred eleven thousand, thirty".
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