Base | Representation |
---|---|
bin | 1111101001111… |
… | …01001011000000 |
3 | 100011002212200112 |
4 | 13310331023000 |
5 | 232104310220 |
6 | 21010410452 |
7 | 3153136415 |
oct | 764751300 |
9 | 304085615 |
10 | 131322560 |
11 | 68145646 |
12 | 37b90a28 |
13 | 2128c775 |
14 | 1362610c |
15 | b7e05c5 |
hex | 7d3d2c0 |
131322560 has 28 divisors (see below), whose sum is σ = 312712608. Its totient is φ = 52528896.
The previous prime is 131322557. The next prime is 131322563. The reversal of 131322560 is 65223131.
It is an interprime number because it is at equal distance from previous prime (131322557) and next prime (131322563).
It is a super-2 number, since 2×1313225602 = 34491229529907200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131322563) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204872 + ... + 205511.
Almost surely, 2131322560 is an apocalyptic number.
131322560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131322560 is an abundant number, since it is smaller than the sum of its proper divisors (181390048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131322560 is an equidigital number, since it uses as much as digits as its factorization.
131322560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 410400 (or 410390 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 23.
The square root of 131322560 is about 11459.6055778548. The cubic root of 131322560 is about 508.2918115925.
Adding to 131322560 its reverse (65223131), we get a palindrome (196545691).
The spelling of 131322560 in words is "one hundred thirty-one million, three hundred twenty-two thousand, five hundred sixty".
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