Base | Representation |
---|---|
bin | 100011011111000110… |
… | …110001100100001101 |
3 | 10122100110012111012122 |
4 | 203133012301210031 |
5 | 1111013311132141 |
6 | 25300523542325 |
7 | 2516136511622 |
oct | 433706614415 |
9 | 118313174178 |
10 | 38102833421 |
11 | 15183068784 |
12 | 747468a9a5 |
13 | 37930015a3 |
14 | 1bb6640349 |
15 | ed018864b |
hex | 8df1b190d |
38102833421 has 4 divisors (see below), whose sum is σ = 38113820700. Its totient is φ = 38091846144.
The previous prime is 38102833381. The next prime is 38102833423. The reversal of 38102833421 is 12433820183.
38102833421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 8934975625 + 29167857796 = 94525^2 + 170786^2 .
It is a cyclic number.
It is not a de Polignac number, because 38102833421 - 218 = 38102571277 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38102833423) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5488436 + ... + 5495373.
It is an arithmetic number, because the mean of its divisors is an integer number (9528455175).
Almost surely, 238102833421 is an apocalyptic number.
It is an amenable number.
38102833421 is a deficient number, since it is larger than the sum of its proper divisors (10987279).
38102833421 is a wasteful number, since it uses less digits than its factorization.
38102833421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10987278.
The product of its (nonzero) digits is 27648, while the sum is 35.
The spelling of 38102833421 in words is "thirty-eight billion, one hundred two million, eight hundred thirty-three thousand, four hundred twenty-one".
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