Base | Representation |
---|---|
bin | 1111101010110… |
… | …11000101000100 |
3 | 100011100002201120 |
4 | 13311123011010 |
5 | 232122220220 |
6 | 21013153540 |
7 | 3154156515 |
oct | 765330504 |
9 | 304302646 |
10 | 131445060 |
11 | 6821968a |
12 | 3802b8b0 |
13 | 21303456 |
14 | 13658a0c |
15 | b816a40 |
hex | 7d5b144 |
131445060 has 24 divisors (see below), whose sum is σ = 368046336. Its totient is φ = 35052000.
The previous prime is 131445049. The next prime is 131445073. The reversal of 131445060 is 60544131.
It is a self number, because there is not a number n which added to its sum of digits gives 131445060.
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, 1095316 + ... + 1095435.
It is an arithmetic number, because the mean of its divisors is an integer number (15335264).
Almost surely, 2131445060 is an apocalyptic number.
131445060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131445060 is an abundant number, since it is smaller than the sum of its proper divisors (236601276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131445060 is a wasteful number, since it uses less digits than its factorization.
131445060 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2190763 (or 2190761 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 131445060 is about 11464.9491930841. The cubic root of 131445060 is about 508.4498103301.
Adding to 131445060 its reverse (60544131), we get a palindrome (191989191).
The spelling of 131445060 in words is "one hundred thirty-one million, four hundred forty-five thousand, sixty".
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