Base | Representation |
---|---|
bin | 1100111110101… |
… | …00000000000000 |
3 | 21120212020212110 |
4 | 12133110000000 |
5 | 210332343210 |
6 | 14445255320 |
7 | 2461252101 |
oct | 637240000 |
9 | 246766773 |
10 | 108871680 |
11 | 565009a5 |
12 | 30564540 |
13 | 1972b918 |
14 | 106603a8 |
15 | 9858420 |
hex | 67d4000 |
108871680 has 120 divisors (see below), whose sum is σ = 349165152. Its totient is φ = 28966912.
The previous prime is 108871667. The next prime is 108871727. The reversal of 108871680 is 86178801.
It is a tau number, because it is divible by the number of its divisors (120).
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, 245539 + ... + 245981.
Almost surely, 2108871680 is an apocalyptic number.
108871680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 108871680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174582576).
108871680 is an abundant number, since it is smaller than the sum of its proper divisors (240293472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
108871680 is an frugal number, since it uses more digits than its factorization.
108871680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 479 (or 453 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 39.
The square root of 108871680 is about 10434.1592857307. The cubic root of 108871680 is about 477.4980930637.
The spelling of 108871680 in words is "one hundred eight million, eight hundred seventy-one thousand, six hundred eighty".
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