Base | Representation |
---|---|
bin | 1111101000011… |
… | …10010101111110 |
3 | 100010202010120110 |
4 | 13310032111332 |
5 | 232032141000 |
6 | 21002330450 |
7 | 3151410252 |
oct | 764162576 |
9 | 303663513 |
10 | 131130750 |
11 | 68024523 |
12 | 37ab9a26 |
13 | 2122337a |
14 | 135b6262 |
15 | b7a3850 |
hex | 7d0e57e |
131130750 has 64 divisors (see below), whose sum is σ = 338644800. Its totient is φ = 33756800.
The previous prime is 131130749. The next prime is 131130767. The reversal of 131130750 is 57031131.
It is a congruent number.
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 31 ways as a sum of consecutive naturals, for example, 18736 + ... + 24764.
It is an arithmetic number, because the mean of its divisors is an integer number (5291325).
Almost surely, 2131130750 is an apocalyptic number.
131130750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 131130750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169322400).
131130750 is an abundant number, since it is smaller than the sum of its proper divisors (207514050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131130750 is a wasteful number, since it uses less digits than its factorization.
131130750 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6078 (or 6068 counting only the distinct ones).
The product of its (nonzero) digits is 315, while the sum is 21.
The square root of 131130750 is about 11451.2335580059. The cubic root of 131130750 is about 508.0442203224.
Adding to 131130750 its reverse (57031131), we get a palindrome (188161881).
The spelling of 131130750 in words is "one hundred thirty-one million, one hundred thirty thousand, seven hundred fifty".
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