Base | Representation |
---|---|
bin | 1111100111110… |
… | …11110111000101 |
3 | 100010121021201120 |
4 | 13303323313011 |
5 | 232022230140 |
6 | 21000544153 |
7 | 3150643452 |
oct | 763736705 |
9 | 303537646 |
10 | 131055045 |
11 | 67a82660 |
12 | 37a82059 |
13 | 211c7a84 |
14 | 13596829 |
15 | b78b1d0 |
hex | 7cfbdc5 |
131055045 has 32 divisors (see below), whose sum is σ = 229824000. Its totient is φ = 63243840.
The previous prime is 131055017. The next prime is 131055047. The reversal of 131055045 is 540550131.
It is not a de Polignac number, because 131055045 - 212 = 131050949 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131055047) by changing a digit.
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, 35706 + ... + 39204.
It is an arithmetic number, because the mean of its divisors is an integer number (7182000).
Almost surely, 2131055045 is an apocalyptic number.
131055045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
131055045 is a deficient number, since it is larger than the sum of its proper divisors (98768955).
131055045 is a wasteful number, since it uses less digits than its factorization.
131055045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3745.
The product of its (nonzero) digits is 1500, while the sum is 24.
The square root of 131055045 is about 11447.9275416994. The cubic root of 131055045 is about 507.9464327029.
The spelling of 131055045 in words is "one hundred thirty-one million, fifty-five thousand, forty-five".
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