Base | Representation |
---|---|
bin | 111101001111111010… |
… | …0000110101010110001 |
3 | 110120111120101020212212 |
4 | 1322133310012222301 |
5 | 4123333221130100 |
6 | 140231341501505 |
7 | 12334304502161 |
oct | 1723764065261 |
9 | 416446336785 |
10 | 131530255025 |
11 | 50866444404 |
12 | 215a9271895 |
13 | c531c2ab90 |
14 | 651a8065a1 |
15 | 364c387635 |
hex | 1e9fd06ab1 |
131530255025 has 96 divisors (see below), whose sum is σ = 190757978208. Its totient is φ = 89089228800.
The previous prime is 131530255007. The next prime is 131530255033. The reversal of 131530255025 is 520552035131.
It can be written as a sum of positive squares in 48 ways, for example, as 124066677361 + 7463577664 = 352231^2 + 86392^2 .
It is not a de Polignac number, because 131530255025 - 28 = 131530254769 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 131530254982 and 131530255000.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45972095 + ... + 45974955.
It is an arithmetic number, because the mean of its divisors is an integer number (1987062273).
Almost surely, 2131530255025 is an apocalyptic number.
It is an amenable number.
131530255025 is a deficient number, since it is larger than the sum of its proper divisors (59227723183).
131530255025 is a wasteful number, since it uses less digits than its factorization.
131530255025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3111 (or 3106 counting only the distinct ones).
The product of its (nonzero) digits is 22500, while the sum is 32.
The spelling of 131530255025 in words is "one hundred thirty-one billion, five hundred thirty million, two hundred fifty-five thousand, twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •