Base | Representation |
---|---|
bin | 1101000010100… |
… | …00001101000100 |
3 | 21121211002201200 |
4 | 12201100031010 |
5 | 211000133140 |
6 | 14504222500 |
7 | 2465501232 |
oct | 641201504 |
9 | 247732650 |
10 | 109380420 |
11 | 56819146 |
12 | 3076aa30 |
13 | 19879356 |
14 | 10753952 |
15 | 9909030 |
hex | 6850344 |
109380420 has 36 divisors (see below), whose sum is σ = 331787820. Its totient is φ = 29168064.
The previous prime is 109380409. The next prime is 109380437. The reversal of 109380420 is 24083901.
It can be written as a sum of positive squares in 2 ways, for example, as 30206016 + 79174404 = 5496^2 + 8898^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303655 + ... + 304014.
Almost surely, 2109380420 is an apocalyptic number.
109380420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
109380420 is an abundant number, since it is smaller than the sum of its proper divisors (222407400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
109380420 is a wasteful number, since it uses less digits than its factorization.
109380420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 607684 (or 607679 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 109380420 is about 10458.5094540283. The cubic root of 109380420 is about 478.2406950575.
The spelling of 109380420 in words is "one hundred nine million, three hundred eighty thousand, four hundred twenty".
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