Base | Representation |
---|---|
bin | 1111100111111… |
… | …01010110000000 |
3 | 100010121121001120 |
4 | 13303331112000 |
5 | 232022423440 |
6 | 21001032240 |
7 | 3151000251 |
oct | 763752600 |
9 | 303547046 |
10 | 131061120 |
11 | 67a87183 |
12 | 37a85680 |
13 | 211ca778 |
14 | 13598b28 |
15 | b78cdd0 |
hex | 7cfd580 |
131061120 has 64 divisors (see below), whose sum is σ = 417763440. Its totient is φ = 34949120.
The previous prime is 131061023. The next prime is 131061131. The reversal of 131061120 is 21160131.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 131061120.
It is a congruent number.
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, 32211 + ... + 36050.
Almost surely, 2131061120 is an apocalyptic number.
131061120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131061120 is an abundant number, since it is smaller than the sum of its proper divisors (286702320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131061120 is an equidigital number, since it uses as much as digits as its factorization.
131061120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68283 (or 68271 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 15.
The square root of 131061120 is about 11448.1928704927. The cubic root of 131061120 is about 507.9542811274.
The spelling of 131061120 in words is "one hundred thirty-one million, sixty-one thousand, one hundred twenty".
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