Base | Representation |
---|---|
bin | 1111101010110… |
… | …00101001111010 |
3 | 100011022121002210 |
4 | 13311120221322 |
5 | 232121411010 |
6 | 21013035550 |
7 | 3154115541 |
oct | 765305172 |
9 | 304277083 |
10 | 131435130 |
11 | 68212182 |
12 | 38025bb6 |
13 | 212cba88 |
14 | 13655158 |
15 | b813b20 |
hex | 7d58a7a |
131435130 has 32 divisors (see below), whose sum is σ = 316085184. Its totient is φ = 34978176.
The previous prime is 131435119. The next prime is 131435147. The reversal of 131435130 is 31534131.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 131435097 and 131435106.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11502 + ... + 19878.
It is an arithmetic number, because the mean of its divisors is an integer number (9877662).
Almost surely, 2131435130 is an apocalyptic number.
131435130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131435130 is an abundant number, since it is smaller than the sum of its proper divisors (184650054).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131435130 is a wasteful number, since it uses less digits than its factorization.
131435130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8910.
The product of its (nonzero) digits is 540, while the sum is 21.
The square root of 131435130 is about 11464.5161258555. The cubic root of 131435130 is about 508.4370064160.
Adding to 131435130 its reverse (31534131), we get a palindrome (162969261).
Subtracting from 131435130 its reverse (31534131), we obtain a palindrome (99900999).
The spelling of 131435130 in words is "one hundred thirty-one million, four hundred thirty-five thousand, one hundred thirty".
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