Base | Representation |
---|---|
bin | 1100100010110… |
… | …11010110000000 |
3 | 21100000022211000 |
4 | 12101123112000 |
5 | 203414403434 |
6 | 14235252000 |
7 | 2415312042 |
oct | 621332600 |
9 | 240008730 |
10 | 105231744 |
11 | 54445192 |
12 | 2b2aa000 |
13 | 18a55c07 |
14 | dd93a92 |
15 | 9389b99 |
hex | 645b580 |
105231744 has 64 divisors (see below), whose sum is σ = 310590000. Its totient is φ = 35076096.
The previous prime is 105231743. The next prime is 105231767. The reversal of 105231744 is 447132501.
It is a tau number, because it is divible by the number of its divisors (64).
It is a super-2 number, since 2×1052317442 = 22147439890563072, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (105231743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11769 + ... + 18680.
Almost surely, 2105231744 is an apocalyptic number.
It is an amenable number.
105231744 is an abundant number, since it is smaller than the sum of its proper divisors (205358256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
105231744 is an equidigital number, since it uses as much as digits as its factorization.
105231744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30472 (or 30454 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
The square root of 105231744 is about 10258.2524827575. The cubic root of 105231744 is about 472.1162214999.
The spelling of 105231744 in words is "one hundred five million, two hundred thirty-one thousand, seven hundred forty-four".
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