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2154 = 23359
BaseRepresentation
bin100001101010
32221210
4201222
532104
613550
76165
oct4152
92853
102154
111689
1212b6
13c99
15989
hex86a

2154 has 8 divisors (see below), whose sum is σ = 4320. Its totient is φ = 716.

The previous prime is 2153. The next prime is 2161. The reversal of 2154 is 4512.

Adding to 2154 its reverse (4512), we get a palindrome (6666).

2154 is nontrivially palindromic in base 15.

2154 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

2154 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

2154 is an undulating number in base 15.

2154 is strictly pandigital in base 5.

It is a plaindrome in base 11.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174 + ... + 185.

It is an arithmetic number, because the mean of its divisors is an integer number (540).

2154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160).

2154 is a wasteful number, since it uses less digits than its factorization.

2154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its digits is 40, while the sum is 12.

The square root of 2154 is about 46.4112055435. The cubic root of 2154 is about 12.9146279590.

The spelling of 2154 in words is "two thousand, one hundred fifty-four".

Divisors: 1 2 3 6 359 718 1077 2154