Base | Representation |
---|---|
bin | 1111010010000000… |
… | …10101001111010100 |
3 | 210011202112210001012 |
4 | 13221000111033110 |
5 | 113300230124440 |
6 | 3434031151352 |
7 | 410210041616 |
oct | 75100251724 |
9 | 23152483035 |
10 | 8204145620 |
11 | 3530032040 |
12 | 170b675558 |
13 | a0991c348 |
14 | 57b848db6 |
15 | 3303c2e65 |
hex | 1e90153d4 |
8204145620 has 48 divisors (see below), whose sum is σ = 18921168000. Its totient is φ = 2963291520.
The previous prime is 8204145613. The next prime is 8204145623. The reversal of 8204145620 is 265414028.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8204145623) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92360 + ... + 157919.
It is an arithmetic number, because the mean of its divisors is an integer number (394191000).
Almost surely, 28204145620 is an apocalyptic number.
It is an amenable number.
8204145620 is an abundant number, since it is smaller than the sum of its proper divisors (10717022380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8204145620 is a wasteful number, since it uses less digits than its factorization.
8204145620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 250448 (or 250446 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 32.
The square root of 8204145620 is about 90576.7388461298. The cubic root of 8204145620 is about 2016.8694458421.
Adding to 8204145620 its reverse (265414028), we get a palindrome (8469559648).
The spelling of 8204145620 in words is "eight billion, two hundred four million, one hundred forty-five thousand, six hundred twenty".
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