Base | Representation |
---|---|
bin | 1111101011110111… |
… | …01011100011011100 |
3 | 210201212122122122000 |
4 | 13311323223203130 |
5 | 114221240430413 |
6 | 3511335522300 |
7 | 415452401121 |
oct | 76573534334 |
9 | 23655578560 |
10 | 8421030108 |
11 | 36314a7617 |
12 | 1770229390 |
13 | a4283896a |
14 | 59c584748 |
15 | 344465073 |
hex | 1f5eeb8dc |
8421030108 has 48 divisors (see below), whose sum is σ = 21874191360. Its totient is φ = 2801624112.
The previous prime is 8421030097. The next prime is 8421030127. The reversal of 8421030108 is 8010301248.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18060 + ... + 131027.
It is an arithmetic number, because the mean of its divisors is an integer number (455712320).
Almost surely, 28421030108 is an apocalyptic number.
It is an amenable number.
8421030108 is an abundant number, since it is smaller than the sum of its proper divisors (13453161252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8421030108 is a wasteful number, since it uses less digits than its factorization.
8421030108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149623 (or 149615 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 8421030108 is about 91766.1708256370. The cubic root of 8421030108 is about 2034.4877225145.
The spelling of 8421030108 in words is "eight billion, four hundred twenty-one million, thirty thousand, one hundred eight".
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