Base | Representation |
---|---|
bin | 1111100111100… |
… | …00011100100000 |
3 | 100010111220120211 |
4 | 13303300130200 |
5 | 232014231123 |
6 | 20555543504 |
7 | 3150360235 |
oct | 763603440 |
9 | 303456524 |
10 | 131008288 |
11 | 67a50514 |
12 | 37a5ab94 |
13 | 211ac6c8 |
14 | 1358378c |
15 | b77c40d |
hex | 7cf0720 |
131008288 has 12 divisors (see below), whose sum is σ = 257922630. Its totient is φ = 65504128.
The previous prime is 131008219. The next prime is 131008289. The reversal of 131008288 is 882800131.
It can be written as a sum of positive squares in only one way, i.e., 82955664 + 48052624 = 9108^2 + 6932^2 .
It is not an unprimeable number, because it can be changed into a prime (131008289) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2046973 + ... + 2047036.
Almost surely, 2131008288 is an apocalyptic number.
It is an amenable number.
131008288 is a deficient number, since it is larger than the sum of its proper divisors (126914342).
131008288 is an equidigital number, since it uses as much as digits as its factorization.
131008288 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4094019 (or 4094011 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 31.
The square root of 131008288 is about 11445.8851994942. The cubic root of 131008288 is about 507.8860181995.
The spelling of 131008288 in words is "one hundred thirty-one million, eight thousand, two hundred eighty-eight".
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