Base | Representation |
---|---|
bin | 100100100001011101… |
… | …011110000001010010 |
3 | 10202020000222012221210 |
4 | 210201131132001102 |
5 | 1120303304011210 |
6 | 30003212400550 |
7 | 2555545112430 |
oct | 444135360122 |
9 | 122200865853 |
10 | 39216078930 |
11 | 156a44aa596 |
12 | 7725476156 |
13 | 390c83c142 |
14 | 1c80429d50 |
15 | 1047c88e20 |
hex | 92175e052 |
39216078930 has 128 divisors (see below), whose sum is σ = 114978963456. Its totient is φ = 8364787200.
The previous prime is 39216078929. The next prime is 39216078947. The reversal of 39216078930 is 3987061293.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 39216078930.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99015 + ... + 297045.
It is an arithmetic number, because the mean of its divisors is an integer number (898273152).
Almost surely, 239216078930 is an apocalyptic number.
39216078930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a pronic number, being equal to 198030×198031.
It is a practical number, because each smaller number is the sum of distinct divisors of 39216078930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57489481728).
39216078930 is an abundant number, since it is smaller than the sum of its proper divisors (75762884526).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
39216078930 is a wasteful number, since it uses less digits than its factorization.
39216078930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198112.
The product of its (nonzero) digits is 489888, while the sum is 48.
The spelling of 39216078930 in words is "thirty-nine billion, two hundred sixteen million, seventy-eight thousand, nine hundred thirty".
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