Base | Representation |
---|---|
bin | 1100111010110… |
… | …11111011000101 |
3 | 21112221021012100 |
4 | 12131123323011 |
5 | 210221123340 |
6 | 14430542313 |
7 | 2454133140 |
oct | 635337305 |
9 | 245837170 |
10 | 108379845 |
11 | 561a5422 |
12 | 30367999 |
13 | 195b8ab2 |
14 | 10573057 |
15 | 97ac830 |
hex | 675bec5 |
108379845 has 96 divisors (see below), whose sum is σ = 233895168. Its totient is φ = 45287424.
The previous prime is 108379807. The next prime is 108379847. The reversal of 108379845 is 548973801.
It is not a de Polignac number, because 108379845 - 28 = 108379589 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 108379845.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (108379847) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 197862 + ... + 198408.
It is an arithmetic number, because the mean of its divisors is an integer number (2436408).
Almost surely, 2108379845 is an apocalyptic number.
108379845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
108379845 is an abundant number, since it is smaller than the sum of its proper divisors (125515323).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
108379845 is a wasteful number, since it uses less digits than its factorization.
108379845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 619 (or 616 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 45.
The square root of 108379845 is about 10410.5641057533. The cubic root of 108379845 is about 476.7779645129. Note that the first 3 decimals are identical.
The spelling of 108379845 in words is "one hundred eight million, three hundred seventy-nine thousand, eight hundred forty-five".
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