Base | Representation |
---|---|
bin | 1100101111001101… |
… | …01001001100110101 |
3 | 122122120202121122102 |
4 | 12113212221030311 |
5 | 103001121112031 |
6 | 3050323511445 |
7 | 331314632555 |
oct | 62746511465 |
9 | 18576677572 |
10 | 6838457141 |
11 | 299a14907a |
12 | 13aa228585 |
13 | 84c9c5159 |
14 | 48c309165 |
15 | 2a05597cb |
hex | 1979a9335 |
6838457141 has 4 divisors (see below), whose sum is σ = 6997491072. Its totient is φ = 6679423212.
The previous prime is 6838457137. The next prime is 6838457149. The reversal of 6838457141 is 1417548386.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1417548386 = 2 ⋅708774193.
It is a cyclic number.
It is not a de Polignac number, because 6838457141 - 22 = 6838457137 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 (6838457149) 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, 79516901 + ... + 79516986.
It is an arithmetic number, because the mean of its divisors is an integer number (1749372768).
Almost surely, 26838457141 is an apocalyptic number.
It is an amenable number.
6838457141 is a deficient number, since it is larger than the sum of its proper divisors (159033931).
6838457141 is a wasteful number, since it uses less digits than its factorization.
6838457141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159033930.
The product of its digits is 645120, while the sum is 47.
The square root of 6838457141 is about 82694.9644234762. The cubic root of 6838457141 is about 1898.1012555893.
The spelling of 6838457141 in words is "six billion, eight hundred thirty-eight million, four hundred fifty-seven thousand, one hundred forty-one".
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