Base | Representation |
---|---|
bin | 100100001000001001… |
… | …111001000010000010 |
3 | 10201010110002012111120 |
4 | 210020021321002002 |
5 | 1113421112010130 |
6 | 25453124453110 |
7 | 2542201306452 |
oct | 441011710202 |
9 | 121113065446 |
10 | 38791516290 |
11 | 154a688837a |
12 | 762724a196 |
13 | 38728aa747 |
14 | 1c3dcadd62 |
15 | 1020872910 |
hex | 908279082 |
38791516290 has 32 divisors (see below), whose sum is σ = 93114671040. Its totient is φ = 10342734144.
The previous prime is 38791516279. The next prime is 38791516301. The reversal of 38791516290 is 9261519783.
It is an interprime number because it is at equal distance from previous prime (38791516279) and next prime (38791516301).
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90477 + ... + 292863.
It is an arithmetic number, because the mean of its divisors is an integer number (2909833470).
Almost surely, 238791516290 is an apocalyptic number.
38791516290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
38791516290 is an abundant number, since it is smaller than the sum of its proper divisors (54323154750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38791516290 is a wasteful number, since it uses less digits than its factorization.
38791516290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208786.
The product of its (nonzero) digits is 816480, while the sum is 51.
The spelling of 38791516290 in words is "thirty-eight billion, seven hundred ninety-one million, five hundred sixteen thousand, two hundred ninety".
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