Search a number
BaseRepresentation
bin11100111110
32112200
4130332
524404
612330
75256
oct3476
92480
101854
111436
1210a6
13ac8
14966
15839
hex73e

1854 has 12 divisors (see below), whose sum is σ = 4056. Its totient is φ = 612.

The previous prime is 1847. The next prime is 1861. The reversal of 1854 is 4581.

1854 = 202 + 212 + ... + 232.

It is an interprime number because it is at equal distance from previous prime (1847) and next prime (1861).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 103 = 1854 / (1 + 8 + 5 + 4).

It is an alternating number because its digits alternate between odd and even.

1854 is a modest number, since divided by 54 gives 18 as remainder.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a subfactorial, being equal to the number of derangements of 7 objects .

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34 + ... + 69.

It is an arithmetic number, because the mean of its divisors is an integer number (338).

1854 is an abundant number, since it is smaller than the sum of its proper divisors (2202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1854 is a wasteful number, since it uses less digits than its factorization.

1854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 108 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1854 is about 43.0581002832. The cubic root of 1854 is about 12.2848514679.

The spelling of 1854 in words is "one thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 9 18 103 206 309 618 927 1854