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108379845 = 32571737547
BaseRepresentation
bin1100111010110…
…11111011000101
321112221021012100
412131123323011
5210221123340
614430542313
72454133140
oct635337305
9245837170
10108379845
11561a5422
1230367999
13195b8ab2
1410573057
1597ac830
hex675bec5

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".

Divisors: 1 3 5 7 9 15 17 21 35 37 45 51 63 85 105 111 119 153 185 255 259 315 333 357 547 555 595 629 765 777 1071 1295 1641 1665 1785 1887 2331 2735 3145 3829 3885 4403 4923 5355 5661 8205 9299 9435 11487 11655 13209 19145 20239 22015 24615 27897 28305 34461 39627 46495 57435 60717 65093 66045 83691 101195 139485 141673 172305 182151 195279 198135 303585 325465 344063 418455 425019 585837 708365 910755 976395 1032189 1275057 1720315 2125095 2408441 2929185 3096567 5160945 6375285 7225323 12042205 15482835 21675969 36126615 108379845