Base | Representation |
---|---|
bin | 1111101000010… |
… | …11110100101000 |
3 | 100010201121102000 |
4 | 13310023310220 |
5 | 232031323144 |
6 | 21002211000 |
7 | 3151335201 |
oct | 764136450 |
9 | 303647360 |
10 | 131120424 |
11 | 68017796 |
12 | 37ab3a60 |
13 | 2121b766 |
14 | 135b25a8 |
15 | b7a0769 |
hex | 7d0bd28 |
131120424 has 64 divisors (see below), whose sum is σ = 380073600. Its totient is φ = 41804928.
The previous prime is 131120417. The next prime is 131120453. The reversal of 131120424 is 424021131.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 131120397 and 131120406.
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, 8229 + ... + 18164.
It is an arithmetic number, because the mean of its divisors is an integer number (5938650).
Almost surely, 2131120424 is an apocalyptic number.
It is an amenable number.
131120424 is an abundant number, since it is smaller than the sum of its proper divisors (248953176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131120424 is a wasteful number, since it uses less digits than its factorization.
131120424 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26431 (or 26421 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 131120424 is about 11450.7826806730. The cubic root of 131120424 is about 508.0308845174.
Adding to 131120424 its reverse (424021131), we get a palindrome (555141555).
The spelling of 131120424 in words is "one hundred thirty-one million, one hundred twenty thousand, four hundred twenty-four".
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