Base | Representation |
---|---|
bin | 1111101101001… |
… | …10100011110101 |
3 | 100011220210211021 |
4 | 13312212203311 |
5 | 232212113404 |
6 | 21023541141 |
7 | 3156615055 |
oct | 766464365 |
9 | 304823737 |
10 | 131754229 |
11 | 6840a9a2 |
12 | 3815a7b1 |
13 | 213b10a9 |
14 | 136d9565 |
15 | b878454 |
hex | 7da68f5 |
131754229 has 2 divisors, whose sum is σ = 131754230. Its totient is φ = 131754228.
The previous prime is 131754173. The next prime is 131754239. The reversal of 131754229 is 922457131.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 121660900 + 10093329 = 11030^2 + 3177^2 .
It is an emirp because it is prime and its reverse (922457131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131754229 - 217 = 131623157 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131754194 and 131754203.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131754239) 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 as a sum of consecutive naturals, namely, 65877114 + 65877115.
It is an arithmetic number, because the mean of its divisors is an integer number (65877115).
Almost surely, 2131754229 is an apocalyptic number.
It is an amenable number.
131754229 is a deficient number, since it is larger than the sum of its proper divisors (1).
131754229 is an equidigital number, since it uses as much as digits as its factorization.
131754229 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 15120, while the sum is 34.
The square root of 131754229 is about 11478.4244999042. The cubic root of 131754229 is about 508.8481360229.
The spelling of 131754229 in words is "one hundred thirty-one million, seven hundred fifty-four thousand, two hundred twenty-nine".
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