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1895 = 5379
BaseRepresentation
bin11101100111
32121012
4131213
530040
612435
75345
oct3547
92535
101895
111473
12111b
13b2a
14995
15865
hex767

1895 has 4 divisors (see below), whose sum is σ = 2280. Its totient is φ = 1512.

The previous prime is 1889. The next prime is 1901. The reversal of 1895 is 5981.

1895 = T25 + T26 + ... + T29.

1895 is nontrivially palindromic in base 16.

1895 is an esthetic number in base 3 and base 16, because in such bases its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1889) and next prime (1901).

It is a cyclic number.

It is not a de Polignac number, because 1895 - 24 = 1879 is a prime.

1895 is an undulating number in base 16.

It is a plaindrome in base 12.

It is a nialpdrome in base 14 and base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1895.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 1895.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 194.

It is an arithmetic number, because the mean of its divisors is an integer number (570).

21895 is an apocalyptic number.

1895 is a deficient number, since it is larger than the sum of its proper divisors (385).

1895 is an equidigital number, since it uses as much as digits as its factorization.

1895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 360, while the sum is 23.

The square root of 1895 is about 43.5315977194. The cubic root of 1895 is about 12.3747491702.

The spelling of 1895 in words is "one thousand, eight hundred ninety-five".

Divisors: 1 5 379 1895