Base | Representation |
---|---|
bin | 1111101010101… |
… | …11011010100100 |
3 | 100011022100010201 |
4 | 13311113122210 |
5 | 232121230202 |
6 | 21013000244 |
7 | 3154064665 |
oct | 765273244 |
9 | 304270121 |
10 | 131430052 |
11 | 68209386 |
12 | 38023084 |
13 | 212c9680 |
14 | 1365336c |
15 | b812387 |
hex | 7d576a4 |
131430052 has 24 divisors (see below), whose sum is σ = 251899200. Its totient is φ = 59630496.
The previous prime is 131430041. The next prime is 131430083. The reversal of 131430052 is 250034131.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18352 + ... + 24487.
It is an arithmetic number, because the mean of its divisors is an integer number (10495800).
Almost surely, 2131430052 is an apocalyptic number.
It is an amenable number.
131430052 is a deficient number, since it is larger than the sum of its proper divisors (120469148).
131430052 is a wasteful number, since it uses less digits than its factorization.
131430052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42915 (or 42913 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 131430052 is about 11464.2946577624. The cubic root of 131430052 is about 508.4304585056.
Adding to 131430052 its reverse (250034131), we get a palindrome (381464183).
The spelling of 131430052 in words is "one hundred thirty-one million, four hundred thirty thousand, fifty-two".
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