Base | Representation |
---|---|
bin | 100100011111111010… |
… | …110001111011010000 |
3 | 10202011020021211222220 |
4 | 210133322301323100 |
5 | 1120230143130313 |
6 | 30000450101040 |
7 | 2555112162534 |
oct | 443772617320 |
9 | 122136254886 |
10 | 39190208208 |
11 | 1569093a528 |
12 | 771887a780 |
13 | 3907381818 |
14 | 1c7ac13bc4 |
15 | 1045878823 |
hex | 91feb1ed0 |
39190208208 has 80 divisors (see below), whose sum is σ = 105699960960. Its totient is φ = 12488712192.
The previous prime is 39190208177. The next prime is 39190208219. The reversal of 39190208208 is 80280209193.
It is a self number, because there is not a number n which added to its sum of digits gives 39190208208.
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, 2297760 + ... + 2314752.
It is an arithmetic number, because the mean of its divisors is an integer number (1321249512).
Almost surely, 239190208208 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 39190208208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52849980480).
39190208208 is an abundant number, since it is smaller than the sum of its proper divisors (66509752752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
39190208208 is a wasteful number, since it uses less digits than its factorization.
39190208208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19116 (or 19110 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 42.
The spelling of 39190208208 in words is "thirty-nine billion, one hundred ninety million, two hundred eight thousand, two hundred eight".
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