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1924 = 221337
BaseRepresentation
bin11110000100
32122021
4132010
530144
612524
75416
oct3604
92567
101924
11149a
121144
13b50
149b6
15884
hex784

1924 has 12 divisors (see below), whose sum is σ = 3724. Its totient is φ = 864.

The previous prime is 1913. The next prime is 1931. The reversal of 1924 is 4291.

It can be written as a sum of positive squares in 2 ways, for example, as 1024 + 900 = 32^2 + 30^2 .

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 9, base 11 and base 12.

It is a nialpdrome in base 13 and base 15.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1898 and 1907.

It is an unprimeable number.

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, 34 + ... + 70.

It is an amenable number.

1924 is a deficient number, since it is larger than the sum of its proper divisors (1800).

1924 is a wasteful number, since it uses less digits than its factorization.

1924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 52 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 1924 is about 43.8634243989. The cubic root of 1924 is about 12.4375552383.

The spelling of 1924 in words is "one thousand, nine hundred twenty-four".

Divisors: 1 2 4 13 26 37 52 74 148 481 962 1924