Base | Representation |
---|---|
bin | 1110110111000001010101 |
3 | 21022220110101 |
4 | 32313001111 |
5 | 1444123011 |
6 | 215254101 |
7 | 45052540 |
oct | 16670125 |
9 | 7286411 |
10 | 3895381 |
11 | 2220726 |
12 | 137a331 |
13 | a65079 |
14 | 735857 |
15 | 51e2c1 |
hex | 3b7055 |
3895381 has 4 divisors (see below), whose sum is σ = 4451872. Its totient is φ = 3338892.
The previous prime is 3895379. The next prime is 3895387. The reversal of 3895381 is 1835983.
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: 1835983 = 17 ⋅107999.
It is a cyclic number.
It is not a de Polignac number, because 3895381 - 21 = 3895379 is a prime.
It is a super-2 number, since 2×38953812 = 30347986270322, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 3895381.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3895387) 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, 278235 + ... + 278248.
It is an arithmetic number, because the mean of its divisors is an integer number (1112968).
Almost surely, 23895381 is an apocalyptic number.
3895381 is the 1140-th hex number.
It is an amenable number.
3895381 is a deficient number, since it is larger than the sum of its proper divisors (556491).
3895381 is an equidigital number, since it uses as much as digits as its factorization.
3895381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 556490.
The product of its digits is 25920, while the sum is 37.
The square root of 3895381 is about 1973.6719585585. The cubic root of 3895381 is about 157.3439253418.
The spelling of 3895381 in words is "three million, eight hundred ninety-five thousand, three hundred eighty-one".
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